Merge pull request #9042 from thinkyhead/bf2_M701_M702

[2.0.x] Improved Pause/Load/Unload, M701-M702

.travis.yml

   - opt_enable ULTIMAKERCONTROLLER SDSUPPORT
   - opt_enable PRINTCOUNTER NOZZLE_PARK_FEATURE NOZZLE_CLEAN_FEATURE PCA9632 USE_XMAX_PLUG
   - opt_enable_adv BEZIER_CURVE_SUPPORT EXPERIMENTAL_I2CBUS
-  - opt_enable_adv ADVANCED_PAUSE_FEATURE PARK_HEAD_ON_PAUSE LCD_INFO_MENU M114_DETAIL
+  - opt_enable_adv ADVANCED_PAUSE_FEATURE FILAMENT_LOAD_UNLOAD_GCODES PARK_HEAD_ON_PAUSE LCD_INFO_MENU M114_DETAIL
   - opt_set_adv PWM_MOTOR_CURRENT {1300,1300,1250}
   - opt_set_adv I2C_SLAVE_ADDRESS 63
   - build_marlin_pio ${TRAVIS_BUILD_DIR} ${TEST_PLATFORM}

Marlin/Configuration_adv.h

  */
 //#define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 2         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  //#define PARK_HEAD_ON_PAUSE                // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 2         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  //#define PARK_HEAD_ON_PAUSE                // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/Marlin.cpp

 millis_t max_inactive_time = 0,
          stepper_inactive_time = (DEFAULT_STEPPER_DEACTIVE_TIME) * 1000UL;
 
-#if ENABLED(ADVANCED_PAUSE_FEATURE)
-  AdvancedPauseMenuResponse advanced_pause_menu_response;
-#endif
-
 #ifdef CHDK
   millis_t chdkHigh = 0;
   bool chdkActive = false;
   disable_E4();
 }
 
+void disable_e_stepper(const uint8_t e) {
+  switch (e) {
+    case 0: disable_E0(); break;
+    case 1: disable_E1(); break;
+    case 2: disable_E2(); break;
+    case 3: disable_E3(); break;
+    case 4: disable_E4(); break;
+  }
+}
+
 void disable_all_steppers() {
   disable_X();
   disable_Y();

Marlin/src/Marlin.h

 #define _AXIS(AXIS) AXIS ##_AXIS
 
 void enable_all_steppers();
+void disable_e_stepper(const uint8_t e);
 void disable_e_steppers();
 void disable_all_steppers();
 
   #endif
 #endif
 
-#if ENABLED(ADVANCED_PAUSE_FEATURE)
-  enum AdvancedPauseMenuResponse {
-    ADVANCED_PAUSE_RESPONSE_WAIT_FOR,
-    ADVANCED_PAUSE_RESPONSE_EXTRUDE_MORE,
-    ADVANCED_PAUSE_RESPONSE_RESUME_PRINT
-  };
-  extern AdvancedPauseMenuResponse advanced_pause_menu_response;
-#endif
-
 #if ENABLED(PID_EXTRUSION_SCALING)
   extern int lpq_len;
 #endif

Marlin/src/config/default/Configuration_adv.h

  */
 //#define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 2         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  //#define PARK_HEAD_ON_PAUSE                // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 2         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  //#define PARK_HEAD_ON_PAUSE                // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/config/examples/AlephObjects/TAZ4/Configuration_adv.h

  */
 //#define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 2         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  //#define PARK_HEAD_ON_PAUSE                // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 2         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  //#define PARK_HEAD_ON_PAUSE                // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/config/examples/Anet/A6/Configuration_adv.h

  */
 //#define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 2         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  //#define PARK_HEAD_ON_PAUSE                // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 2         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  //#define PARK_HEAD_ON_PAUSE                // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/config/examples/Anet/A8/Configuration_adv.h

  */
 //#define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 2         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  //#define PARK_HEAD_ON_PAUSE                // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 2         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  //#define PARK_HEAD_ON_PAUSE                // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/config/examples/Azteeg/X5GT/Configuration_adv.h

  */
 //#define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 2         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  //#define PARK_HEAD_ON_PAUSE                // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 2         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  //#define PARK_HEAD_ON_PAUSE                // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/config/examples/BQ/Hephestos/Configuration_adv.h

  */
 //#define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 2         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  //#define PARK_HEAD_ON_PAUSE                // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 2         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  //#define PARK_HEAD_ON_PAUSE                // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/config/examples/BQ/Hephestos_2/Configuration_adv.h

  */
 //#define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 2         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  //#define PARK_HEAD_ON_PAUSE                // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 2         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  //#define PARK_HEAD_ON_PAUSE                // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/config/examples/BQ/WITBOX/Configuration_adv.h

  */
 //#define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 2         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  //#define PARK_HEAD_ON_PAUSE                // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 2         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  //#define PARK_HEAD_ON_PAUSE                // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/config/examples/Cartesio/Configuration_adv.h

  */
 //#define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 1         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  //#define FILAMENT_CHANGE_UNLOAD_LENGTH 100 // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  //#define PARK_HEAD_ON_PAUSE                // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 1         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  //#define FILAMENT_CHANGE_UNLOAD_LENGTH 100 // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  //#define PARK_HEAD_ON_PAUSE                // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/config/examples/Creality/CR-10/Configuration_adv.h

  */
 #define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 4         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 420   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 8     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 120       // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 3 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  #define PARK_HEAD_ON_PAUSE                  // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 4         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 420   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 8     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 120       // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 6       // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  #define PARK_HEAD_ON_PAUSE                  // Park the nozzle during pause and filament change.
   #define HOME_BEFORE_FILAMENT_CHANGE         // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/config/examples/Felix/Configuration_adv.h

  */
 //#define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 2         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  //#define PARK_HEAD_ON_PAUSE                // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 2         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  //#define PARK_HEAD_ON_PAUSE                // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/config/examples/FolgerTech/i3-2020/Configuration_adv.h

  */
 #define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 2         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  #define PARK_HEAD_ON_PAUSE                  // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 2         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  #define PARK_HEAD_ON_PAUSE                  // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/config/examples/Infitary/i3-M508/Configuration_adv.h

  */
 //#define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 2         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  //#define PARK_HEAD_ON_PAUSE                // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 2         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  //#define PARK_HEAD_ON_PAUSE                // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/config/examples/MakerParts/Configuration_adv.h

  */
 #define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 2         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  //#define PARK_HEAD_ON_PAUSE                // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 2         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  //#define PARK_HEAD_ON_PAUSE                // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/config/examples/Malyan/M150/Configuration_adv.h

  */
 //#define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 2         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  //#define PARK_HEAD_ON_PAUSE                // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 2         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  //#define PARK_HEAD_ON_PAUSE                // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/config/examples/Malyan/M200/Configuration_adv.h

  */
 //#define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 2         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  //#define PARK_HEAD_ON_PAUSE                // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 2         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  //#define PARK_HEAD_ON_PAUSE                // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/config/examples/Micromake/C1/enhanced/Configuration_adv.h

  */
 //#define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 2         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  //#define PARK_HEAD_ON_PAUSE                // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 2         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  //#define PARK_HEAD_ON_PAUSE                // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/config/examples/Mks/Sbase/Configuration_adv.h

  */
 //#define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 2         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  //#define PARK_HEAD_ON_PAUSE                // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 2         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  //#define PARK_HEAD_ON_PAUSE                // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/config/examples/RigidBot/Configuration_adv.h

  */
 //#define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 2         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  //#define PARK_HEAD_ON_PAUSE                // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 2         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  //#define PARK_HEAD_ON_PAUSE                // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/config/examples/SCARA/Configuration_adv.h

  */
 //#define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 2         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  //#define PARK_HEAD_ON_PAUSE                // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 2         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  //#define PARK_HEAD_ON_PAUSE                // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/config/examples/Sanguinololu/Configuration_adv.h

  */
 //#define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 2         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  //#define PARK_HEAD_ON_PAUSE                // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 2         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  //#define PARK_HEAD_ON_PAUSE                // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/config/examples/TinyBoy2/Configuration_adv.h

  */
 //#define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 2         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  //#define PARK_HEAD_ON_PAUSE                // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 2         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  //#define PARK_HEAD_ON_PAUSE                // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/config/examples/UltiMachine/Archim2/Configuration_adv.h

  */
 //#define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 2         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  //#define PARK_HEAD_ON_PAUSE                // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 2         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  //#define PARK_HEAD_ON_PAUSE                // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/config/examples/Velleman/K8200/Configuration_adv.h

  */
 //#define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 2         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  //#define PARK_HEAD_ON_PAUSE                // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 2         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  //#define PARK_HEAD_ON_PAUSE                // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/config/examples/Velleman/K8400/Configuration_adv.h

  */
 //#define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 5         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 600   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 100   // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  //#define PARK_HEAD_ON_PAUSE                // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 5         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 600   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 100   // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  //#define PARK_HEAD_ON_PAUSE                // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/config/examples/Wanhao/Duplicator 6/Configuration_adv.h

  */
 #define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 2         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  //#define PARK_HEAD_ON_PAUSE                // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 2         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  //#define PARK_HEAD_ON_PAUSE                // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/config/examples/delta/FLSUN/auto_calibrate/Configuration_adv.h

  */
 //#define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 2         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  //#define PARK_HEAD_ON_PAUSE                // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 2         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  //#define PARK_HEAD_ON_PAUSE                // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/config/examples/delta/FLSUN/kossel_mini/Configuration_adv.h

  */
 //#define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 2         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  //#define PARK_HEAD_ON_PAUSE                // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 2         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  //#define PARK_HEAD_ON_PAUSE                // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/config/examples/delta/generic/Configuration_adv.h

  */
 //#define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 2         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  //#define PARK_HEAD_ON_PAUSE                // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 2         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  //#define PARK_HEAD_ON_PAUSE                // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/config/examples/delta/kossel_mini/Configuration_adv.h

  */
 //#define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 2         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  //#define PARK_HEAD_ON_PAUSE                // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 2         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  //#define PARK_HEAD_ON_PAUSE                // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/config/examples/delta/kossel_pro/Configuration_adv.h

  */
 //#define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 2         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  //#define PARK_HEAD_ON_PAUSE                // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 2         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  //#define PARK_HEAD_ON_PAUSE                // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/config/examples/delta/kossel_xl/Configuration_adv.h

  */
 //#define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 2         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  //#define PARK_HEAD_ON_PAUSE                // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 2         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  //#define PARK_HEAD_ON_PAUSE                // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/config/examples/gCreate/gMax1.5+/Configuration_adv.h

  */
 #define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 2         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  #define PARK_HEAD_ON_PAUSE                  // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 2         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  #define PARK_HEAD_ON_PAUSE                  // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/config/examples/makibox/Configuration_adv.h

  */
 //#define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 2         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  //#define PARK_HEAD_ON_PAUSE                // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 2         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  //#define PARK_HEAD_ON_PAUSE                // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/config/examples/tvrrug/Round2/Configuration_adv.h

  */
 //#define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 2         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  //#define PARK_HEAD_ON_PAUSE                // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 2         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  //#define PARK_HEAD_ON_PAUSE                // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/config/examples/wt150/Configuration_adv.h

  */
 //#define ADVANCED_PAUSE_FEATURE
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // Initial retract feedrate in mm/s
-  #define PAUSE_PARK_RETRACT_LENGTH 2         // Initial retract in mm
-                                              // It is a short retract used immediately after print interrupt before move to filament exchange position
-  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // Unload filament feedrate in mm/s - filament unloading can be fast
-  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
-                                              // Longer length for bowden printers to unload filament from whole bowden tube,
-                                              // shorter length for printers without bowden to unload filament from extruder only,
-                                              // 0 to disable unloading for manual unloading
-  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
-  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // Load filament length over hotend in mm
-                                              // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
-                                              // Short or zero length for printers without bowden where loading is not used
-  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // Extrude filament feedrate in mm/s - must be slower than load feedrate
-  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // Extrude filament length in mm after filament is loaded over the hotend,
-                                              // 0 to disable for manual extrusion
-                                              // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
-                                              // or until outcoming filament color is not clear for filament color change
-  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // Turn off nozzle if user doesn't change filament within this time limit in seconds
-  #define FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS 5 // Number of alert beeps before printer goes quiet
-  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable to have stepper motors hold position during filament change
-                                              // even if it takes longer than DEFAULT_STEPPER_DEACTIVE_TIME.
-  //#define PARK_HEAD_ON_PAUSE                // Go to filament change position on pause, return to print position on resume
+  #define PAUSE_PARK_RETRACT_FEEDRATE 60      // (mm/s) Initial retract feedrate.
+  #define PAUSE_PARK_RETRACT_LENGTH 2         // (mm) Initial retract.
+                                              // This short retract is done immediately, before parking the nozzle.
+  #define FILAMENT_CHANGE_UNLOAD_FEEDRATE 10  // (mm/s) Unload filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // (mm) The length of filament for a complete unload.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+                                              //   Set to 0 for manual unloading.
+  #define FILAMENT_CHANGE_LOAD_FEEDRATE 6     // (mm/s) Load filament feedrate. This can be pretty fast.
+  #define FILAMENT_CHANGE_LOAD_LENGTH 0       // (mm) Load length of filament, from extruder gear to nozzle.
+                                              //   For Bowden, the full length of the tube and nozzle.
+                                              //   For direct drive, the full length of the nozzle.
+  #define ADVANCED_PAUSE_EXTRUDE_FEEDRATE 3   // (mm/s) Extrude feedrate (after loading). Should be slower than load feedrate.
+  #define ADVANCED_PAUSE_EXTRUDE_LENGTH 50    // (mm) Length to extrude after loading.
+                                              //   Set to 0 for manual extrusion.
+                                              //   Filament can be extruded repeatedly from the Filament Change menu
+                                              //   until extrusion is consistent, and to purge old filament.
+
+                                              // Filament Unload does a Retract, Delay, and Purge first:
+  #define FILAMENT_UNLOAD_RETRACT_LENGTH 13   // (mm) Unload initial retract length.
+  #define FILAMENT_UNLOAD_DELAY 5000          // (ms) Delay for the filament to cool after retract.
+  #define FILAMENT_UNLOAD_PURGE_LENGTH 8      // (mm) An unretract is done, then this length is purged.
+
+  #define PAUSE_PARK_NOZZLE_TIMEOUT 45        // (seconds) Time limit before the nozzle is turned off for safety.
+  #define FILAMENT_CHANGE_ALERT_BEEPS 10      // Number of alert beeps to play when a response is needed.
+  #define PAUSE_PARK_NO_STEPPER_TIMEOUT       // Enable for XYZ steppers to stay powered on during filament change.
+
+  //#define PARK_HEAD_ON_PAUSE                // Park the nozzle during pause and filament change.
   //#define HOME_BEFORE_FILAMENT_CHANGE       // Ensure homing has been completed prior to parking for filament change
+
+  //#define FILAMENT_LOAD_UNLOAD_GCODES       // Add M701/M702 Load/Unload G-codes, plus Load/Unload in the LCD Prepare menu.
+  //#define FILAMENT_UNLOAD_ALL_EXTRUDERS     // Allow M702 to unload all extruders above a minimum target temp (as set by M302)
 #endif
 
 // @section tmc

Marlin/src/core/language.h

 #define MSG_ENDSTOPS_HIT                    "endstops hit: "
 #define MSG_ERR_COLD_EXTRUDE_STOP           " cold extrusion prevented"
 #define MSG_ERR_LONG_EXTRUDE_STOP           " too long extrusion prevented"
-#define MSG_TOO_COLD_FOR_M600               "M600 Hotend too cold to change filament"
+#define MSG_HOTEND_TOO_COLD                 "Hotend too cold"
+
+#define MSG_FILAMENT_CHANGE_HEAT            "Press button (or M108) to heat nozzle"
+#define MSG_FILAMENT_CHANGE_HEAT_LCD        "Press button to heat nozzle"
+#define MSG_FILAMENT_CHANGE_HEAT_M108       "Send M108 to heat nozzle"
+#define MSG_FILAMENT_CHANGE_INSERT          "Insert filament and press button (or M108)"
+#define MSG_FILAMENT_CHANGE_INSERT_LCD      "Insert filament and press button"
+#define MSG_FILAMENT_CHANGE_INSERT_M108     "Insert filament and send M108"
+
 #define MSG_SERIAL_ERROR_MENU_STRUCTURE     "Error in menu structure"
 
 #define MSG_ERR_EEPROM_WRITE                "Error writing to EEPROM!"

Marlin/src/feature/pause.cpp

 
 #include "../inc/MarlinConfig.h"
 
-#if ENABLED(ADVANCED_PAUSE_FEATURE) || ENABLED(PARK_HEAD_ON_PAUSE)
+#if ENABLED(ADVANCED_PAUSE_FEATURE)
 
 #include "../Marlin.h"
 #include "../gcode/gcode.h"
 
 static float resume_position[XYZE];
 
+AdvancedPauseMenuResponse advanced_pause_menu_response;
+
+float filament_change_unload_length[EXTRUDERS],
+      filament_change_load_length[EXTRUDERS];
+
 #if ENABLED(SDSUPPORT)
   #include "../sd/cardreader.h"
 #endif
     const millis_t ms = millis();
     if (ELAPSED(ms, next_buzz)) {
       if (max_beep_count < 0 || runout_beep < max_beep_count + 5) { // Only beep as long as we're supposed to
-        next_buzz = ms + ((max_beep_count < 0 || runout_beep < max_beep_count) ? 2500 : 400);
-        BUZZ(300, 2000);
+        next_buzz = ms + ((max_beep_count < 0 || runout_beep < max_beep_count) ? 1000 : 500);
+        BUZZ(50, 880 - (runout_beep & 1) * 220);
         runout_beep++;
       }
     }
   }
 #endif
 
-static void ensure_safe_temperature() {
-  bool heaters_heating = true;
-
-  wait_for_heatup = true;    // M108 will clear this
-  while (wait_for_heatup && heaters_heating) {
-    idle();
-    heaters_heating = false;
-    HOTEND_LOOP() {
-      if (thermalManager.degTargetHotend(e) && abs(thermalManager.degHotend(e) - thermalManager.degTargetHotend(e)) > TEMP_HYSTERESIS) {
-        heaters_heating = true;
-        #if ENABLED(ULTIPANEL)
-          lcd_advanced_pause_show_message(ADVANCED_PAUSE_MESSAGE_WAIT_FOR_NOZZLES_TO_HEAT);
-        #endif
-        break;
-      }
+static bool ensure_safe_temperature(const AdvancedPauseMode mode=ADVANCED_PAUSE_MODE_PAUSE_PRINT) {
+
+  #if ENABLED(PREVENT_COLD_EXTRUSION)
+    if (!DEBUGGING(DRYRUN) && thermalManager.targetTooColdToExtrude(active_extruder)) {
+      SERIAL_ERROR_START();
+      SERIAL_ERRORLNPGM(MSG_HOTEND_TOO_COLD);
+      return false;
     }
-  }
+  #endif
+
+  #if ENABLED(ULTIPANEL)
+    lcd_advanced_pause_show_message(ADVANCED_PAUSE_MESSAGE_WAIT_FOR_NOZZLES_TO_HEAT, mode);
+  #else
+    UNUSED(mode);
+  #endif
+
+  wait_for_heatup = true; // M108 will clear this
+  while (wait_for_heatup && thermalManager.wait_for_heating(active_extruder)) idle();
+  const bool status = wait_for_heatup;
+  wait_for_heatup = false;
+
+  return status;
 }
 
-void do_pause_e_move(const float &length, const float fr) {
-  current_position[E_AXIS] += length / planner.e_factor[active_extruder];
+static void do_pause_e_move(const float &length, const float &fr) {
   set_destination_from_current();
-  #if IS_KINEMATIC
-    planner.buffer_line_kinematic(destination, fr, active_extruder);
+  destination[E_AXIS] += length / planner.e_factor[active_extruder];
+  buffer_line_to_destination(fr);
+  stepper.synchronize();
+  set_current_from_destination();
+}
+
+bool load_filament(const float &load_length/*=0*/, const float &extrude_length/*=0*/, const int8_t max_beep_count/*=0*/,
+                          const bool show_lcd/*=false*/, const bool pause_for_user/*=false*/,
+                          const AdvancedPauseMode mode/*=ADVANCED_PAUSE_MODE_PAUSE_PRINT*/
+) {
+  #if DISABLED(ULTIPANEL)
+    UNUSED(show_lcd);
+  #endif
+
+  if (!ensure_safe_temperature(mode)) {
+    #if ENABLED(ULTIPANEL)
+      if (show_lcd) // Show status screen
+        lcd_advanced_pause_show_message(ADVANCED_PAUSE_MESSAGE_STATUS);
+    #endif
+
+    return false;
+  }
+
+  if (pause_for_user) {
+    #if ENABLED(ULTIPANEL)
+      if (show_lcd) // Show "insert filament"
+        lcd_advanced_pause_show_message(ADVANCED_PAUSE_MESSAGE_INSERT, mode);
+    #endif
+    SERIAL_ECHO_START();
+    SERIAL_ECHOLNPGM(MSG_FILAMENT_CHANGE_INSERT);
+
+    #if HAS_BUZZER
+      filament_change_beep(max_beep_count, true);
+    #else
+      UNUSED(max_beep_count);
+    #endif
+
+    KEEPALIVE_STATE(PAUSED_FOR_USER);
+    wait_for_user = true;    // LCD click or M108 will clear this
+    while (wait_for_user) {
+      #if HAS_BUZZER
+        filament_change_beep(max_beep_count);
+      #endif
+      idle(true);
+    }
+    KEEPALIVE_STATE(IN_HANDLER);
+  }
+
+  #if ENABLED(ULTIPANEL)
+    if (show_lcd) // Show "load" message
+      lcd_advanced_pause_show_message(ADVANCED_PAUSE_MESSAGE_LOAD, mode);
+  #endif
+
+  // Load filament
+  do_pause_e_move(load_length, FILAMENT_CHANGE_LOAD_FEEDRATE);
+
+  do {
+    if (extrude_length > 0) {
+      // "Wait for filament purge"
+      #if ENABLED(ULTIPANEL)
+        if (show_lcd)
+          lcd_advanced_pause_show_message(ADVANCED_PAUSE_MESSAGE_PURGE, mode);
+      #endif
+
+      // Extrude filament to get into hotend
+      do_pause_e_move(extrude_length, ADVANCED_PAUSE_EXTRUDE_FEEDRATE);
+    }
+
+    // Show "Extrude More" / "Resume" menu and wait for reply
+    #if ENABLED(ULTIPANEL)
+      if (show_lcd) {
+        KEEPALIVE_STATE(PAUSED_FOR_USER);
+        wait_for_user = false;
+        lcd_advanced_pause_show_message(ADVANCED_PAUSE_MESSAGE_OPTION, mode);
+        while (advanced_pause_menu_response == ADVANCED_PAUSE_RESPONSE_WAIT_FOR) idle(true);
+        KEEPALIVE_STATE(IN_HANDLER);
+      }
+    #endif
+
+    // Keep looping if "Extrude More" was selected
+  } while (
+    #if ENABLED(ULTIPANEL)
+      show_lcd && advanced_pause_menu_response == ADVANCED_PAUSE_RESPONSE_EXTRUDE_MORE
+    #else
+      0
+    #endif
+  );
+
+  return true;
+}
+
+bool unload_filament(const float &unload_length, const bool show_lcd/*=false*/,
+                            const AdvancedPauseMode mode/*=ADVANCED_PAUSE_MODE_PAUSE_PRINT*/
+) {
+  if (!ensure_safe_temperature(mode)) {
+    #if ENABLED(ULTIPANEL)
+      if (show_lcd) // Show status screen
+        lcd_advanced_pause_show_message(ADVANCED_PAUSE_MESSAGE_STATUS);
+    #endif
+
+    return false;
+  }
+
+  #if DISABLED(ULTIPANEL)
+    UNUSED(show_lcd);
   #else
-    buffer_line_to_destination(fr);
+    if (show_lcd)
+      lcd_advanced_pause_show_message(ADVANCED_PAUSE_MESSAGE_UNLOAD, mode);
   #endif
-  stepper.synchronize();
+
+  // Retract filament
+  do_pause_e_move(-FILAMENT_UNLOAD_RETRACT_LENGTH, PAUSE_PARK_RETRACT_FEEDRATE);
+
+  // Wait for filament to cool
+  safe_delay(FILAMENT_UNLOAD_DELAY);
+
+  // Quickly purge
+  do_pause_e_move(FILAMENT_UNLOAD_RETRACT_LENGTH + FILAMENT_UNLOAD_PURGE_LENGTH, planner.max_feedrate_mm_s[E_AXIS]);
+
+  // Unload filament
+  do_pause_e_move(unload_length, FILAMENT_CHANGE_UNLOAD_FEEDRATE);
+
+  // Disable extruders steppers for manual filament changing (only on boards that have separate ENABLE_PINS)
+  #if E0_ENABLE_PIN != X_ENABLE_PIN && E1_ENABLE_PIN != Y_ENABLE_PIN
+    disable_e_stepper(active_extruder);
+    safe_delay(100);
+  #endif
+
+  return true;
 }
 
 // public:
 
 uint8_t did_pause_print = 0;
 
-bool pause_print(const float &retract, const point_t &park_point, const float &unload_length/*=0*/,
-                 const int8_t max_beep_count/*=0*/, const bool show_lcd/*=false*/
-) {
+bool pause_print(const float &retract, const point_t &park_point, const float &unload_length/*=0*/, const bool show_lcd/*=false*/) {
   if (did_pause_print) return false; // already paused
 
   #ifdef ACTION_ON_PAUSE
     SERIAL_ECHOLNPGM("//action:" ACTION_ON_PAUSE);
   #endif
 
-  if (!DEBUGGING(DRYRUN) && unload_length != 0) {
-    #if ENABLED(PREVENT_COLD_EXTRUSION)
-      if (!thermalManager.allow_cold_extrude &&
-          thermalManager.degTargetHotend(active_extruder) < thermalManager.extrude_min_temp) {
-        SERIAL_ERROR_START();
-        SERIAL_ERRORLNPGM(MSG_TOO_COLD_FOR_M600);
-        return false;
-      }
+  #if ENABLED(ULTIPANEL)
+    if (show_lcd) // Show initial message
+      lcd_advanced_pause_show_message(ADVANCED_PAUSE_MESSAGE_INIT);
+  #endif
+
+  if (!DEBUGGING(DRYRUN) && unload_length && thermalManager.targetTooColdToExtrude(active_extruder)) {
+    SERIAL_ERROR_START();
+    SERIAL_ERRORLNPGM(MSG_HOTEND_TOO_COLD);
+
+    #if ENABLED(ULTIPANEL)
+      if (show_lcd) // Show status screen
+        lcd_advanced_pause_show_message(ADVANCED_PAUSE_MESSAGE_STATUS);
     #endif
 
-    ensure_safe_temperature(); // wait for extruder to heat up before unloading
+    return false; // unable to reach safe temperature
   }
 
   // Indicate that the printer is paused
 
   // Pause the print job and timer
   #if ENABLED(SDSUPPORT)
-    if (IS_SD_PRINTING) {
+    if (card.sdprinting) {
       card.pauseSDPrint();
       ++did_pause_print;
     }
   #endif
   print_job_timer.pause();
 
-  // Show initial message and wait for synchronize steppers
-  if (show_lcd) {
-    #if ENABLED(ULTIPANEL)
-      lcd_advanced_pause_show_message(ADVANCED_PAUSE_MESSAGE_INIT);
-    #endif
-  }
-
+  // Wait for synchronize steppers
   stepper.synchronize();
-  COPY(resume_position, current_position); // Save current position for later
+
+  // Save current position
+  COPY(resume_position, current_position);
 
   // Initial retract before move to filament change position
   if (retract && !thermalManager.tooColdToExtrude(active_extruder))
   // Park the nozzle by moving up by z_lift and then moving to (x_pos, y_pos)
   Nozzle::park(2, park_point);
 
-  if (unload_length != 0) {
-    if (show_lcd) {
-      #if ENABLED(ULTIPANEL)
-        lcd_advanced_pause_show_message(ADVANCED_PAUSE_MESSAGE_UNLOAD);
-        idle();
-      #endif
-    }
+  // Unload the filament
+  if (unload_length)
+    unload_filament(unload_length, show_lcd);
 
-    // Unload filament
-    do_pause_e_move(unload_length, FILAMENT_CHANGE_UNLOAD_FEEDRATE);
-  }
+  return true;
+}
 
-  if (show_lcd) {
-    #if ENABLED(ULTIPANEL)
-      lcd_advanced_pause_show_message(ADVANCED_PAUSE_MESSAGE_INSERT);
-    #endif
-  }
+void wait_for_filament_reload(const int8_t max_beep_count/*=0*/) {
+  bool nozzle_timed_out = false;
 
-  #if HAS_BUZZER
-    filament_change_beep(max_beep_count, true);
+  #if ENABLED(ULTIPANEL)
+    lcd_advanced_pause_show_message(ADVANCED_PAUSE_MESSAGE_INSERT);
   #endif
+  SERIAL_ECHO_START();
+  SERIAL_ERRORLNPGM(MSG_FILAMENT_CHANGE_INSERT);
 
-  idle();
-
-  // Disable extruders steppers for manual filament changing (only on boards that have separate ENABLE_PINS)
-  #if E0_ENABLE_PIN != X_ENABLE_PIN && E1_ENABLE_PIN != Y_ENABLE_PIN
-    disable_e_steppers();
-    safe_delay(100);
+  #if HAS_BUZZER
+    filament_change_beep(max_beep_count, true);
   #endif
 
   // Start the heater idle timers
   HOTEND_LOOP()
     thermalManager.start_heater_idle_timer(e, nozzle_timeout);
 
-  return true;
-}
-
-void wait_for_filament_reload(const int8_t max_beep_count/*=0*/) {
-  bool nozzle_timed_out = false;
-
   // Wait for filament insert by user and press button
   KEEPALIVE_STATE(PAUSED_FOR_USER);
   wait_for_user = true;    // LCD click or M108 will clear this
       #if ENABLED(ULTIPANEL)
         lcd_advanced_pause_show_message(ADVANCED_PAUSE_MESSAGE_CLICK_TO_HEAT_NOZZLE);
       #endif
+      SERIAL_ECHO_START();
+      #if ENABLED(ULTIPANEL) && ENABLED(EMERGENCY_PARSER)
+        SERIAL_ERRORLNPGM(MSG_FILAMENT_CHANGE_HEAT);
+      #elif ENABLED(EMERGENCY_PARSER)
+        SERIAL_ERRORLNPGM(MSG_FILAMENT_CHANGE_HEAT_M108);
+      #else
+        SERIAL_ERRORLNPGM(MSG_FILAMENT_CHANGE_HEAT_LCD);
+      #endif
 
       // Wait for LCD click or M108
       while (wait_for_user) idle(true);
       #if ENABLED(ULTIPANEL)
         lcd_advanced_pause_show_message(ADVANCED_PAUSE_MESSAGE_INSERT);
       #endif
+      SERIAL_ECHO_START();
+      #if ENABLED(ULTIPANEL) && ENABLED(EMERGENCY_PARSER)
+        SERIAL_ERRORLNPGM(MSG_FILAMENT_CHANGE_INSERT);
+      #elif ENABLED(EMERGENCY_PARSER)
+        SERIAL_ERRORLNPGM(MSG_FILAMENT_CHANGE_INSERT_M108);
+      #else
+        SERIAL_ERRORLNPGM(MSG_FILAMENT_CHANGE_INSERT_LCD);
+      #endif
 
       // Start the heater idle timers
       const millis_t nozzle_timeout = (millis_t)(PAUSE_PARK_NOZZLE_TIMEOUT) * 1000UL;
       HOTEND_LOOP()
         thermalManager.start_heater_idle_timer(e, nozzle_timeout);
 
-      wait_for_user = true; /* Wait for user to load filament */
+      wait_for_user = true; // Wait for user to load filament
       nozzle_timed_out = false;
 
       #if HAS_BUZZER
   KEEPALIVE_STATE(IN_HANDLER);
 }
 
-void resume_print(const float &load_length/*=0*/, const float &initial_extrude_length/*=0*/, const int8_t max_beep_count/*=0*/) {
+void resume_print(const float &load_length/*=0*/, const float &extrude_length/*=ADVANCED_PAUSE_EXTRUDE_LENGTH*/, const int8_t max_beep_count/*=0*/) {
   bool nozzle_timed_out = false;
 
   if (!did_pause_print) return;
     thermalManager.reset_heater_idle_timer(e);
   }
 
-  if (nozzle_timed_out) ensure_safe_temperature();
-
-  #if HAS_BUZZER
-    filament_change_beep(max_beep_count, true);
-  #endif
-
-  if (load_length != 0) {
-    #if ENABLED(ULTIPANEL)
-      // Show "insert filament"
-      if (nozzle_timed_out)
-        lcd_advanced_pause_show_message(ADVANCED_PAUSE_MESSAGE_INSERT);
-    #endif
-
-    KEEPALIVE_STATE(PAUSED_FOR_USER);
-    wait_for_user = true;    // LCD click or M108 will clear this
-    while (wait_for_user && nozzle_timed_out) {
-      #if HAS_BUZZER
-        filament_change_beep(max_beep_count);
-      #endif
-      idle(true);
-    }
-    KEEPALIVE_STATE(IN_HANDLER);
-
-    #if ENABLED(ULTIPANEL)
-      // Show "load" message
-      lcd_advanced_pause_show_message(ADVANCED_PAUSE_MESSAGE_LOAD);
-    #endif
-
-    // Load filament
-    do_pause_e_move(load_length, FILAMENT_CHANGE_LOAD_FEEDRATE);
+  if (nozzle_timed_out || !thermalManager.tooColdToExtrude(active_extruder)) {
+    // Load the new filament
+    load_filament(load_length, extrude_length, max_beep_count, true, nozzle_timed_out);
   }
 
-  #if ENABLED(ULTIPANEL) && ADVANCED_PAUSE_EXTRUDE_LENGTH > 0
-
-    if (!thermalManager.tooColdToExtrude(active_extruder)) {
-      float extrude_length = initial_extrude_length;
-
-      do {
-        if (extrude_length > 0) {
-          // "Wait for filament extrude"
-          lcd_advanced_pause_show_message(ADVANCED_PAUSE_MESSAGE_EXTRUDE);
-
-          // Extrude filament to get into hotend
-          do_pause_e_move(extrude_length, ADVANCED_PAUSE_EXTRUDE_FEEDRATE);
-        }
-
-        // Show "Extrude More" / "Resume" menu and wait for reply
-        KEEPALIVE_STATE(PAUSED_FOR_USER);
-        wait_for_user = false;
-        lcd_advanced_pause_show_message(ADVANCED_PAUSE_MESSAGE_OPTION);
-        while (advanced_pause_menu_response == ADVANCED_PAUSE_RESPONSE_WAIT_FOR) idle(true);
-        KEEPALIVE_STATE(IN_HANDLER);
-
-        extrude_length = ADVANCED_PAUSE_EXTRUDE_LENGTH;
-
-        // Keep looping if "Extrude More" was selected
-      } while (advanced_pause_menu_response == ADVANCED_PAUSE_RESPONSE_EXTRUDE_MORE);
-    }
-
-  #endif
-
   #if ENABLED(ULTIPANEL)
     // "Wait for print to resume"
     lcd_advanced_pause_show_message(ADVANCED_PAUSE_MESSAGE_RESUME);
   #endif
 
   #if ENABLED(ULTIPANEL)
-    // Show pause status screen
+    // Show status screen
     lcd_advanced_pause_show_message(ADVANCED_PAUSE_MESSAGE_STATUS);
   #endif
 
   #endif
 }
 
-#endif // ADVANCED_PAUSE_FEATURE || PARK_HEAD_ON_PAUSE
+#endif // ADVANCED_PAUSE_FEATURE

Marlin/src/feature/pause.h

 
 #include "../libs/nozzle.h"
 
+#include "../inc/MarlinConfigPre.h"
+
+enum AdvancedPauseMode {
+  ADVANCED_PAUSE_MODE_PAUSE_PRINT,
+  ADVANCED_PAUSE_MODE_LOAD_FILAMENT,
+  ADVANCED_PAUSE_MODE_UNLOAD_FILAMENT
+};
+
+enum AdvancedPauseMessage {
+  ADVANCED_PAUSE_MESSAGE_INIT,
+  ADVANCED_PAUSE_MESSAGE_UNLOAD,
+  ADVANCED_PAUSE_MESSAGE_INSERT,
+  ADVANCED_PAUSE_MESSAGE_LOAD,
+  ADVANCED_PAUSE_MESSAGE_PURGE,
+  ADVANCED_PAUSE_MESSAGE_OPTION,
+  ADVANCED_PAUSE_MESSAGE_RESUME,
+  ADVANCED_PAUSE_MESSAGE_STATUS,
+  ADVANCED_PAUSE_MESSAGE_CLICK_TO_HEAT_NOZZLE,
+  ADVANCED_PAUSE_MESSAGE_WAIT_FOR_NOZZLES_TO_HEAT
+};
+
+enum AdvancedPauseMenuResponse {
+  ADVANCED_PAUSE_RESPONSE_WAIT_FOR,
+  ADVANCED_PAUSE_RESPONSE_EXTRUDE_MORE,
+  ADVANCED_PAUSE_RESPONSE_RESUME_PRINT
+};
+
+extern AdvancedPauseMenuResponse advanced_pause_menu_response;
+
+extern float filament_change_unload_length[EXTRUDERS],
+             filament_change_load_length[EXTRUDERS];
+
 extern uint8_t did_pause_print;
 
-bool pause_print(const float &retract, const point_t &park_point, const float &unload_length=0,
-                 const int8_t max_beep_count=0, const bool show_lcd=false
-);
+bool pause_print(const float &retract, const point_t &park_point, const float &unload_length=0, const bool show_lcd=false);
 
 void wait_for_filament_reload(const int8_t max_beep_count=0);
 
-void resume_print(const float &load_length=0, const float &initial_extrude_length=0, const int8_t max_beep_count=0);
+void resume_print(const float &load_length=0, const float &extrude_length=ADVANCED_PAUSE_EXTRUDE_LENGTH, const int8_t max_beep_count=0);
+
+bool load_filament(const float &load_length=0, const float &extrude_length=0, const int8_t max_beep_count=0, const bool show_lcd=false,
+                          const bool pause_for_user=false, const AdvancedPauseMode mode=ADVANCED_PAUSE_MODE_PAUSE_PRINT);
+
+bool unload_filament(const float &unload_length, const bool show_lcd=false, const AdvancedPauseMode mode=ADVANCED_PAUSE_MODE_PAUSE_PRINT);
 
 #endif // _PAUSE_H_

Marlin/src/gcode/control/M17_M18_M84.cpp

       if (parser.seen('X')) disable_X();
       if (parser.seen('Y')) disable_Y();
       if (parser.seen('Z')) disable_Z();
-      #if E0_ENABLE_PIN != X_ENABLE_PIN && E1_ENABLE_PIN != Y_ENABLE_PIN // Only enable on boards that have separate ENABLE_PINS
+      #if E0_ENABLE_PIN != X_ENABLE_PIN && E1_ENABLE_PIN != Y_ENABLE_PIN // Only disable on boards that have separate ENABLE_PINS
         if (parser.seen('E')) disable_e_steppers();
       #endif
     }

Marlin/src/gcode/feature/pause/M600.cpp

   #include "../../../module/tool_change.h"
 #endif
 
+#if ENABLED(ULTIPANEL)
+  #include "../../../lcd/ultralcd.h"
+#endif
+
 /**
  * M600: Pause for filament change
  *
- *  E[distance] - Retract the filament this far (negative value)
+ *  E[distance] - Retract the filament this far
  *  Z[distance] - Move the Z axis by this distance
  *  X[position] - Move to this X position, with Y
  *  Y[position] - Move to this Y position, with X
- *  U[distance] - Retract distance for removal (negative value) (manual reload)
- *  L[distance] - Extrude distance for insertion (positive value) (manual reload)
+ *  U[distance] - Retract distance for removal (manual reload)
+ *  L[distance] - Extrude distance for insertion (manual reload)
  *  B[count]    - Number of times to beep, -1 for indefinite (if equipped with a buzzer)
  *  T[toolhead] - Select extruder for filament change
  *
  *  Default values are used for omitted arguments.
- *
  */
 void GcodeSuite::M600() {
   point_t park_point = NOZZLE_PARK_POINT;
 
+  if (get_target_extruder_from_command()) return;
+
+  // Show initial message
+  #if ENABLED(ULTIPANEL)
+    lcd_advanced_pause_show_message(ADVANCED_PAUSE_MESSAGE_INIT, ADVANCED_PAUSE_MODE_PAUSE_PRINT, target_extruder);
+  #endif
+
   #if ENABLED(HOME_BEFORE_FILAMENT_CHANGE)
     // Don't allow filament change without homing first
     if (axis_unhomed_error()) home_all_axes();
 
   #if EXTRUDERS > 1
     // Change toolhead if specified
-    uint8_t active_extruder_before_filament_change = -1;
-    if (parser.seen('T')) {
-      const uint8_t extruder = parser.value_byte();
-      if (active_extruder != extruder) {
-        active_extruder_before_filament_change = active_extruder;
-        tool_change(extruder, 0, true);
-      }
-    }
+    uint8_t active_extruder_before_filament_change = active_extruder;
+    if (active_extruder != target_extruder)
+      tool_change(target_extruder, 0, true);
   #endif
 
   // Initial retract before move to filament change position
-  const float retract = parser.seen('E') ? parser.value_axis_units(E_AXIS) : 0
+  const float retract = -FABS(parser.seen('E') ? parser.value_axis_units(E_AXIS) : 0
     #ifdef PAUSE_PARK_RETRACT_LENGTH
-      - (PAUSE_PARK_RETRACT_LENGTH)
+      + (PAUSE_PARK_RETRACT_LENGTH)
     #endif
-  ;
+  );
 
   // Move XY axes to filament change position or given position
   if (parser.seenval('X')) park_point.x = parser.linearval('X');
   #endif
 
   // Unload filament
-  const float unload_length = parser.seen('U') ? parser.value_axis_units(E_AXIS) : 0
-    #if defined(FILAMENT_CHANGE_UNLOAD_LENGTH) && FILAMENT_CHANGE_UNLOAD_LENGTH > 0
-      - (FILAMENT_CHANGE_UNLOAD_LENGTH)
-    #endif
-  ;
+  const float unload_length = -FABS(parser.seen('U') ? parser.value_axis_units(E_AXIS)
+                                                     : filament_change_unload_length[active_extruder]);
 
   // Load filament
-  const float load_length = parser.seen('L') ? parser.value_axis_units(E_AXIS) : 0
-    #ifdef FILAMENT_CHANGE_LOAD_LENGTH
-      + FILAMENT_CHANGE_LOAD_LENGTH
-    #endif
-  ;
+  const float load_length = FABS(parser.seen('L') ? parser.value_axis_units(E_AXIS)
+                                                  : filament_change_load_length[active_extruder]);
 
   const int beep_count = parser.intval('B',
-    #ifdef FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS
-      FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS
+    #ifdef FILAMENT_CHANGE_ALERT_BEEPS
+      FILAMENT_CHANGE_ALERT_BEEPS
     #else
       -1
     #endif
 
   const bool job_running = print_job_timer.isRunning();
 
-  if (pause_print(retract, park_point, unload_length, beep_count, true)) {
+  if (pause_print(retract, park_point, unload_length, true)) {
     wait_for_filament_reload(beep_count);
     resume_print(load_length, ADVANCED_PAUSE_EXTRUDE_LENGTH, beep_count);
   }
 
   #if EXTRUDERS > 1
     // Restore toolhead if it was changed
-    if (active_extruder_before_filament_change >= 0)
+    if (active_extruder_before_filament_change != active_extruder)
       tool_change(active_extruder_before_filament_change, 0, true);
   #endif
 

Marlin/src/gcode/feature/pause/M603.cpp

+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "../../../inc/MarlinConfig.h"
+
+#if ENABLED(ADVANCED_PAUSE_FEATURE)
+
+#include "../../gcode.h"
+#include "../../../feature/pause.h"
+#include "../../../module/motion.h"
+#include "../../../module/printcounter.h"
+
+#if EXTRUDERS > 1
+  #include "../../../module/tool_change.h"
+#endif
+
+/**
+ * M603: Configure filament change
+ *
+ *  T[toolhead] - Select extruder to configure, active extruder if not specified
+ *  U[distance] - Retract distance for removal, for the specified extruder
+ *  L[distance] - Extrude distance for insertion, for the specified extruder
+ *
+ */
+inline void GcodeSuite::M603() {
+
+  if (get_target_extruder_from_command()) return;
+
+  // Unload length
+  if (parser.seen('U')) {
+    filament_change_unload_length[target_extruder] = FABS(parser.value_axis_units(E_AXIS));
+    #if ENABLED(PREVENT_LENGTHY_EXTRUDE)
+      NOMORE(filament_change_unload_length[target_extruder], EXTRUDE_MAXLENGTH);
+    #endif
+  }
+
+  // Load length
+  if (parser.seen('L')) {
+    filament_change_load_length[target_extruder] = FABS(parser.value_axis_units(E_AXIS));
+    #if ENABLED(PREVENT_LENGTHY_EXTRUDE)
+      NOMORE(filament_change_load_length[target_extruder], EXTRUDE_MAXLENGTH);
+    #endif
+  }
+}
+
+#endif // ADVANCED_PAUSE_FEATURE

Marlin/src/gcode/feature/pause/M701_M702.cpp

+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "../../../inc/MarlinConfigPre.h"
+
+#if ENABLED(FILAMENT_LOAD_UNLOAD_GCODES)
+
+#include "../../gcode.h"
+#include "../../../Marlin.h"
+#include "../../../module/motion.h"
+#include "../../../module/temperature.h"
+#include "../../../libs/point_t.h"
+
+#if EXTRUDERS > 1
+  #include "../../../module/tool_change.h"
+#endif
+
+#if ENABLED(ULTIPANEL)
+  #include "../../../lcd/ultralcd.h"
+#endif
+
+/**
+ * M701: Load filament
+ *
+ *  T[extruder] - Optional extruder number. Current extruder if omitted.
+ *  Z[distance] - Move the Z axis by this distance
+ *  L[distance] - Extrude distance for insertion (positive value) (manual reload)
+ *
+ *  Default values are used for omitted arguments.
+ */
+void GcodeSuite::M701() {
+  point_t park_point = NOZZLE_PARK_POINT;
+
+  if (get_target_extruder_from_command()) return;
+
+  // Z axis lift
+  if (parser.seenval('Z')) park_point.z = parser.linearval('Z');
+
+  // Load filament
+  const float load_length = FABS(parser.seen('L') ? parser.value_axis_units(E_AXIS) :
+                                                    filament_change_load_length[target_extruder]);
+
+  // Show initial message
+  #if ENABLED(ULTIPANEL)
+    lcd_advanced_pause_show_message(ADVANCED_PAUSE_MESSAGE_LOAD, ADVANCED_PAUSE_MODE_LOAD_FILAMENT, target_extruder);
+  #endif
+
+  #if EXTRUDERS > 1
+    // Change toolhead if specified
+    uint8_t active_extruder_before_filament_change = active_extruder;
+    if (active_extruder != target_extruder)
+      tool_change(target_extruder, 0, true);
+  #endif
+
+  // Lift Z axis
+  if (park_point.z > 0)
+    do_blocking_move_to_z(min(current_position[Z_AXIS] + park_point.z, Z_MAX_POS), NOZZLE_PARK_Z_FEEDRATE);
+
+  load_filament(load_length, ADVANCED_PAUSE_EXTRUDE_LENGTH, FILAMENT_CHANGE_ALERT_BEEPS, true,
+                thermalManager.wait_for_heating(target_extruder), ADVANCED_PAUSE_MODE_LOAD_FILAMENT);
+
+  // Restore Z axis
+  if (park_point.z > 0)
+    do_blocking_move_to_z(max(current_position[Z_AXIS] - park_point.z, Z_MIN_POS), NOZZLE_PARK_Z_FEEDRATE);
+
+  #if EXTRUDERS > 1
+    // Restore toolhead if it was changed
+    if (active_extruder_before_filament_change != active_extruder)
+      tool_change(active_extruder_before_filament_change, 0, true);
+  #endif
+
+  // Show status screen
+  #if ENABLED(ULTIPANEL)
+    lcd_advanced_pause_show_message(ADVANCED_PAUSE_MESSAGE_STATUS);
+  #endif
+}
+
+/**
+ * M702: Unload filament
+ *
+ *  T[extruder] - Optional extruder number. If omitted, current extruder
+ *                (or ALL extruders with FILAMENT_UNLOAD_ALL_EXTRUDERS).
+ *  Z[distance] - Move the Z axis by this distance
+ *  U[distance] - Retract distance for removal (manual reload)
+ *
+ *  Default values are used for omitted arguments.
+ */
+void GcodeSuite::M702() {
+  point_t park_point = NOZZLE_PARK_POINT;
+
+  if (get_target_extruder_from_command()) return;
+
+  // Z axis lift
+  if (parser.seenval('Z')) park_point.z = parser.linearval('Z');
+
+  // Show initial message
+  #if ENABLED(ULTIPANEL)
+    lcd_advanced_pause_show_message(ADVANCED_PAUSE_MESSAGE_UNLOAD, ADVANCED_PAUSE_MODE_UNLOAD_FILAMENT, target_extruder);
+  #endif
+
+  #if EXTRUDERS > 1
+    // Change toolhead if specified
+    uint8_t active_extruder_before_filament_change = active_extruder;
+    if (active_extruder != target_extruder)
+      tool_change(target_extruder, 0, true);
+  #endif
+
+  // Lift Z axis
+  if (park_point.z > 0)
+    do_blocking_move_to_z(min(current_position[Z_AXIS] + park_point.z, Z_MAX_POS), NOZZLE_PARK_Z_FEEDRATE);
+
+  // Unload filament
+  #if EXTRUDERS > 1 && ENABLED(FILAMENT_UNLOAD_ALL_EXTRUDERS)
+    if (!parser.seenval('T')) {
+      HOTEND_LOOP() {
+        if (e != active_extruder) tool_change(e, 0, true);
+        unload_filament(-filament_change_unload_length[e], true, ADVANCED_PAUSE_MODE_UNLOAD_FILAMENT);
+      }
+    }
+    else
+  #endif
+  {
+    // Unload length
+    const float unload_length = -FABS(parser.seen('U') ? parser.value_axis_units(E_AXIS) :
+                                                        filament_change_unload_length[target_extruder]);
+
+    unload_filament(unload_length, true, ADVANCED_PAUSE_MODE_UNLOAD_FILAMENT);
+  }
+
+  // Restore Z axis
+  if (park_point.z > 0)
+    do_blocking_move_to_z(max(current_position[Z_AXIS] - park_point.z, Z_MIN_POS), NOZZLE_PARK_Z_FEEDRATE);
+
+  #if EXTRUDERS > 1
+    // Restore toolhead if it was changed
+    if (active_extruder_before_filament_change != active_extruder)
+      tool_change(active_extruder_before_filament_change, 0, true);
+  #endif
+
+  // Show status screen
+  #if ENABLED(ULTIPANEL)
+    lcd_advanced_pause_show_message(ADVANCED_PAUSE_MESSAGE_STATUS);
+  #endif
+}
+
+#endif // ADVANCED_PAUSE_FEATURE

Marlin/src/gcode/feature/snmm/M702.cpp

-/**
- * Marlin 3D Printer Firmware
- * Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-#include "../../../inc/MarlinConfig.h"
-
-#if ENABLED(MK2_MULTIPLEXER)
-
-#include "../../gcode.h"
-#include "../../../module/motion.h"
-#include "../../../feature/snmm.h"
-#include "../../../Marlin.h"
-
-/**
- * M702: Unload all extruders
- */
-void GcodeSuite::M702() {
-  for (uint8_t s = 0; s < E_STEPPERS; s++) {
-    select_multiplexed_stepper(s);
-    // TODO: standard unload filament function
-    // MK2 firmware behavior:
-    //  - Make sure temperature is high enough
-    //  - Raise Z to at least 15 to make room
-    //  - Extrude 1cm of filament in 1 second
-    //  - Under 230C quickly purge ~12mm, over 230C purge ~10mm
-    //  - Change E max feedrate to 80, eject the filament from the tube. Sync.
-    //  - Restore E max feedrate to 50
-  }
-  // Go back to the last active extruder
-  select_multiplexed_stepper(active_extruder);
-  disable_e_steppers();
-}
-
-#endif // MK2_MULTIPLEXER

Marlin/src/gcode/gcode.cpp

       #endif
 
       #if ENABLED(PARK_HEAD_ON_PAUSE)
-        case 125: // M125: Store current position and move to filament change position
-          M125(); break;
+        case 125: M125(); break;  // M125: Store current position and move to filament change position
       #endif
 
       #if ENABLED(BARICUDA)

Marlin/src/gcode/gcode.h

  * M503 - Print the current settings (in memory): "M503 S<verbose>". S0 specifies compact output.
  * M540 - Enable/disable SD card abort on endstop hit: "M540 S<state>". (Requires ABORT_ON_ENDSTOP_HIT_FEATURE_ENABLED)
  * M600 - Pause for filament change: "M600 X<pos> Y<pos> Z<raise> E<first_retract> L<later_retract>". (Requires ADVANCED_PAUSE_FEATURE)
+ * M603 - Configure filament change: "M603 T<tool> U<unload_length> L<load_length>". (Requires ADVANCED_PAUSE_FEATURE)
+ * M605 - Set Dual X-Carriage movement mode: "M605 S<mode> [X<x_offset>] [R<temp_offset>]". (Requires DUAL_X_CARRIAGE)
  * M665 - Set delta configurations: "M665 L<diagonal rod> R<delta radius> S<segments/s> A<rod A trim mm> B<rod B trim mm> C<rod C trim mm> I<tower A trim angle> J<tower B trim angle> K<tower C trim angle>" (Requires DELTA)
  * M666 - Set delta endstop adjustment. (Requires DELTA)
- * M605 - Set dual x-carriage movement mode: "M605 S<mode> [X<x_offset>] [R<temp_offset>]". (Requires DUAL_X_CARRIAGE)
+ * M701 - Load filament (requires FILAMENT_LOAD_UNLOAD_GCODES)
+ * M702 - Unload filament (requires FILAMENT_LOAD_UNLOAD_GCODES)
  * M851 - Set Z probe's Z offset in current units. (Negative = below the nozzle.)
  * M852 - Set skew factors: "M852 [I<xy>] [J<xz>] [K<yz>]". (Requires SKEW_CORRECTION_GCODE, and SKEW_CORRECTION_FOR_Z for IJ)
  * M860 - Report the position of position encoder modules.
 
   #if ENABLED(ADVANCED_PAUSE_FEATURE)
     static void M600();
+    static void M603();
   #endif
 
   #if ENABLED(DUAL_X_CARRIAGE) || ENABLED(DUAL_NOZZLE_DUPLICATION_MODE)
     static void M666();
   #endif
 
-  #if ENABLED(MK2_MULTIPLEXER)
+  #if ENABLED(FILAMENT_LOAD_UNLOAD_GCODES)
+    static void M701();
     static void M702();
   #endif
 

Marlin/src/inc/SanityCheck.h

   #error "FILAMENT_CHANGE_EXTRUDE_LENGTH is now ADVANCED_PAUSE_EXTRUDE_LENGTH. Please update your configuration."
 #elif defined(FILAMENT_CHANGE_NOZZLE_TIMEOUT)
   #error "FILAMENT_CHANGE_NOZZLE_TIMEOUT is now PAUSE_PARK_NOZZLE_TIMEOUT. Please update your configuration."
+#elif defined(FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS)
+  #error "FILAMENT_CHANGE_NUMBER_OF_ALERT_BEEPS is now FILAMENT_CHANGE_ALERT_BEEPS. Please update your configuration."
 #elif ENABLED(FILAMENT_CHANGE_NO_STEPPER_TIMEOUT)
   #error "FILAMENT_CHANGE_NO_STEPPER_TIMEOUT is now PAUSE_PARK_NO_STEPPER_TIMEOUT. Please update your configuration."
 #elif defined(PLA_PREHEAT_HOTEND_TEMP)
  * Advanced Pause
  */
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #if DISABLED(NEWPANEL)
-    #error "ADVANCED_PAUSE_FEATURE currently requires an LCD controller."
+  #if !HAS_RESUME_CONTINUE
+    #error "ADVANCED_PAUSE_FEATURE currently requires an LCD controller or EMERGENCY_PARSER."
   #elif ENABLED(EXTRUDER_RUNOUT_PREVENT)
     #error "EXTRUDER_RUNOUT_PREVENT is incompatible with ADVANCED_PAUSE_FEATURE."
   #elif ENABLED(PARK_HEAD_ON_PAUSE) && DISABLED(SDSUPPORT) && DISABLED(NEWPANEL) && DISABLED(EMERGENCY_PARSER)
     #error "PARK_HEAD_ON_PAUSE requires SDSUPPORT, EMERGENCY_PARSER, or an LCD controller."
   #elif ENABLED(HOME_BEFORE_FILAMENT_CHANGE) && DISABLED(PAUSE_PARK_NO_STEPPER_TIMEOUT)
-    #error "HOME_BEFORE_FILAMENT_CHANGE requires PAUSE_PARK_NO_STEPPER_TIMEOUT"
+    #error "HOME_BEFORE_FILAMENT_CHANGE requires PAUSE_PARK_NO_STEPPER_TIMEOUT."
   #elif DISABLED(NOZZLE_PARK_FEATURE)
-    #error "ADVANCED_PAUSE_FEATURE requires NOZZLE_PARK_FEATURE"
+    #error "ADVANCED_PAUSE_FEATURE requires NOZZLE_PARK_FEATURE."
+  #elif ENABLED(PREVENT_LENGTHY_EXTRUDE) && FILAMENT_CHANGE_UNLOAD_LENGTH > EXTRUDE_MAXLENGTH
+    #error "FILAMENT_CHANGE_UNLOAD_LENGTH must be less than or equal to EXTRUDE_MAXLENGTH."
+  #elif ENABLED(PREVENT_LENGTHY_EXTRUDE) && FILAMENT_CHANGE_LOAD_LENGTH > EXTRUDE_MAXLENGTH
+    #error "FILAMENT_CHANGE_LOAD_LENGTH must be less than or equal to EXTRUDE_MAXLENGTH."
   #endif
 #endif
 
  */
 #ifdef SNMM
   #error "SNMM is now MK2_MULTIPLEXER. Please update your configuration."
-#elif ENABLED(MK2_MULTIPLEXER) && DISABLED(ADVANCED_PAUSE_FEATURE)
-  #error "ADVANCED_PAUSE_FEATURE is required with MK2_MULTIPLEXER."
 #endif
 
 /**

Marlin/src/lcd/language/language_an.h

 #define MSG_DRIVE_STRENGTH                  _UxGT("Fuerza d'o driver")
 #define MSG_DAC_PERCENT                     _UxGT("Driver %")
 #define MSG_DAC_EEPROM_WRITE                _UxGT("Escri. DAC EEPROM")
-#define MSG_FILAMENT_CHANGE_HEADER          _UxGT("PRINT PAUSED")
-#define MSG_FILAMENT_CHANGE_OPTION_HEADER   _UxGT("RESUME OPTIONS:")
-#define MSG_FILAMENT_CHANGE_OPTION_EXTRUDE  _UxGT("Extruir mas")
 #define MSG_FILAMENT_CHANGE_OPTION_RESUME   _UxGT("Resumir imp.")
 
 //
 #define MSG_FILAMENT_CHANGE_UNLOAD_2        _UxGT("expulsar filament")
 #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("Aguardando a")
 #define MSG_FILAMENT_CHANGE_LOAD_2          _UxGT("cargar filamento")
-#define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("Aguardando a")
-#define MSG_FILAMENT_CHANGE_EXTRUDE_2       _UxGT("extruir filamento")
 #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("Aguardando impre.")
 #define MSG_FILAMENT_CHANGE_RESUME_2        _UxGT("pa continar")
 

Marlin/src/lcd/language/language_ca.h

 #define MSG_DRIVE_STRENGTH                  _UxGT("Força motor")
 #define MSG_DAC_PERCENT                     _UxGT("Driver %")
 #define MSG_DAC_EEPROM_WRITE                _UxGT("DAC EEPROM Write")
-#define MSG_FILAMENT_CHANGE_HEADER          _UxGT("PRINT PAUSED")
-#define MSG_FILAMENT_CHANGE_OPTION_HEADER   _UxGT("RESUME OPTIONS:")
-#define MSG_FILAMENT_CHANGE_OPTION_EXTRUDE  _UxGT("Extrudeix mes")
 #define MSG_FILAMENT_CHANGE_OPTION_RESUME   _UxGT("Repren impressió")
-#define MSG_FILAMENT_CHANGE_MINTEMP         _UxGT("Temp minima es ")
 
 //
 // Filament Change screens show up to 3 lines on a 4-line display
   #define MSG_FILAMENT_CHANGE_HEATING_2       _UxGT("Espereu...")
   #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("Esperant carrega")
   #define MSG_FILAMENT_CHANGE_LOAD_2          _UxGT("de filament")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("Esperant per")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_2       _UxGT("extreure filament")
   #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("Esperant per")
   #define MSG_FILAMENT_CHANGE_RESUME_2        _UxGT("reprendre")
 #else // LCD_HEIGHT < 4
   #define MSG_FILAMENT_CHANGE_INSERT_1        _UxGT("Insereix i prem")
   #define MSG_FILAMENT_CHANGE_HEATING_1       _UxGT("Escalfant...")
   #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("Carregant...")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("Extrudint...")
   #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("Reprenent...")
 #endif // LCD_HEIGHT < 4
 

Marlin/src/lcd/language/language_cz.h

 #define MSG_DRIVE_STRENGTH                  _UxGT("Buzeni motoru")
 #define MSG_DAC_PERCENT                     _UxGT("Motor %")
 #define MSG_DAC_EEPROM_WRITE                _UxGT("Ulozit do EEPROM")
-#define MSG_FILAMENT_CHANGE_HEADER          _UxGT("PRINT PAUSED")
-#define MSG_FILAMENT_CHANGE_OPTION_HEADER   _UxGT("RESUME OPTIONS:")
-#define MSG_FILAMENT_CHANGE_OPTION_EXTRUDE  _UxGT("Jeste vytlacit")
 #define MSG_FILAMENT_CHANGE_OPTION_RESUME   _UxGT("Obnovit tisk")
-#define MSG_FILAMENT_CHANGE_MINTEMP         _UxGT("Min. teplota je ")
 #define MSG_FILAMENT_CHANGE_NOZZLE          _UxGT("  Tryska: ")
 #define MSG_ERR_HOMING_FAILED               _UxGT("Parkovani selhalo")
 #define MSG_ERR_PROBING_FAILED              _UxGT("Kalibrace selhala")
   #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("Cekejte prosim")
   #define MSG_FILAMENT_CHANGE_LOAD_2          _UxGT("na zavedeni")
   #define MSG_FILAMENT_CHANGE_LOAD_3          _UxGT("filamentu")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("Cekejte prosim")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_2       _UxGT("na vytlaceni")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_3       _UxGT("filamentu")
   #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("Cekejte prosim")
   #define MSG_FILAMENT_CHANGE_RESUME_2        _UxGT("na pokracovani")
   #define MSG_FILAMENT_CHANGE_RESUME_3        _UxGT("tisku")
   #define MSG_FILAMENT_CHANGE_INSERT_1        _UxGT("Vlozte, kliknete")
   #define MSG_FILAMENT_CHANGE_HEATING_1       _UxGT("Nahrivani...")
   #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("Zavadeni...")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("Vytlacovani...")
   #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("Pokracovani...")
 #endif // LCD_HEIGHT < 4
 

Marlin/src/lcd/language/language_cz_utf8.h

 #define MSG_DRIVE_STRENGTH                  _UxGT("Buzení motorů")
 #define MSG_DAC_PERCENT                     _UxGT("Motor %")
 #define MSG_DAC_EEPROM_WRITE                _UxGT("Uložit do EEPROM")
-#define MSG_FILAMENT_CHANGE_HEADER          _UxGT("PRINT PAUSED")
-#define MSG_FILAMENT_CHANGE_OPTION_HEADER   _UxGT("RESUME OPTIONS:")
-#define MSG_FILAMENT_CHANGE_OPTION_EXTRUDE  _UxGT("Ještě vytlačit")
 #define MSG_FILAMENT_CHANGE_OPTION_RESUME   _UxGT("Obnovit tisk")
-#define MSG_FILAMENT_CHANGE_MINTEMP         _UxGT("Min. teplota je ")
 #define MSG_FILAMENT_CHANGE_NOZZLE          _UxGT("  Tryska: ")
 #define MSG_ERR_HOMING_FAILED               _UxGT("Parkování selhalo")
 #define MSG_ERR_PROBING_FAILED              _UxGT("Kalibrace selhala")
   #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("Čekejte prosím")
   #define MSG_FILAMENT_CHANGE_LOAD_2          _UxGT("na zavedení")
   #define MSG_FILAMENT_CHANGE_LOAD_3          _UxGT("filamentu")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("Čekejte prosím")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_2       _UxGT("na vytlačení")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_3       _UxGT("filamentu")
   #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("Čekejte prosím")
   #define MSG_FILAMENT_CHANGE_RESUME_2        _UxGT("na pokračování")
   #define MSG_FILAMENT_CHANGE_RESUME_3        _UxGT("tisku")
   #define MSG_FILAMENT_CHANGE_INSERT_1        _UxGT("Vložte, klikněte")
   #define MSG_FILAMENT_CHANGE_HEATING_1       _UxGT("Nahřívání...")
   #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("Zavádění...")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("Vytlačování...")
   #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("Pokračování...")
 #endif // LCD_HEIGHT < 4
 

Marlin/src/lcd/language/language_da.h

 #define MSG_DAC_PERCENT                     _UxGT("Driv %")
 #define MSG_DAC_EEPROM_WRITE                _UxGT("DAC EEPROM Skriv")
 
-#define MSG_FILAMENT_CHANGE_HEADER          _UxGT("PRINT PAUSED")
-#define MSG_FILAMENT_CHANGE_OPTION_HEADER   _UxGT("RESUME OPTIONS:")
-#define MSG_FILAMENT_CHANGE_OPTION_EXTRUDE  _UxGT("Extruder mere")
 #define MSG_FILAMENT_CHANGE_OPTION_RESUME   _UxGT("Forsæt print")
 
 #if LCD_HEIGHT >= 4
   #define MSG_FILAMENT_CHANGE_INSERT_3        _UxGT("for at fortsætte...")
   #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("Vent på")
   #define MSG_FILAMENT_CHANGE_LOAD_2          _UxGT("filament indtag")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("Vent på")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_2       _UxGT("filament extrudering")
   #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("Vent på at print")
   #define MSG_FILAMENT_CHANGE_RESUME_2        _UxGT("fortsætter")
 #else // LCD_HEIGHT < 4
   #define MSG_FILAMENT_CHANGE_UNLOAD_1        _UxGT("Udskyder...")
   #define MSG_FILAMENT_CHANGE_INSERT_1        _UxGT("Indsæt og klik")
   #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("Indtager...")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("Extrudere...")
   #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("Fortsætter...")
 #endif // LCD_HEIGHT < 4
 

Marlin/src/lcd/language/language_de.h

 #define MSG_DAC_PERCENT                     _UxGT("Treiber %")
 #define MSG_DAC_EEPROM_WRITE                _UxGT("Werte speichern")
 
-#define MSG_FILAMENT_CHANGE_HEADER          _UxGT("DRUCK PAUSIERT")
+#define MSG_FILAMENT_CHANGE_HEADER_PAUSE    _UxGT("DRUCK PAUSIERT")
 #define MSG_FILAMENT_CHANGE_OPTION_HEADER   _UxGT("FORTS. OPTIONEN:")
-#define MSG_FILAMENT_CHANGE_OPTION_EXTRUDE  _UxGT("Extrude mehr")
 #define MSG_FILAMENT_CHANGE_OPTION_RESUME   _UxGT("Drucke weiter")
-#define MSG_FILAMENT_CHANGE_MINTEMP         _UxGT("Min. Temperatur ist ")
 #define MSG_FILAMENT_CHANGE_NOZZLE          _UxGT("  Düse: ")
 
 #if LCD_HEIGHT >= 4
   #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("Warte auf")
   #define MSG_FILAMENT_CHANGE_LOAD_2          _UxGT("Laden des")
   #define MSG_FILAMENT_CHANGE_LOAD_3          _UxGT("Filaments")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("Warte auf")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_2       _UxGT("Extrusion des")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_3       _UxGT("Filaments")
   #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("Warte auf")
   #define MSG_FILAMENT_CHANGE_RESUME_2        _UxGT("Fortsetzung des")
   #define MSG_FILAMENT_CHANGE_RESUME_3        _UxGT("Druckes...")
   #define MSG_FILAMENT_CHANGE_INSERT_1        _UxGT("Laden und Klick")
   #define MSG_FILAMENT_CHANGE_HEATING_1       _UxGT("Heizen...")
   #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("Laden...")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("Extrudieren...")
   #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("Fortsetzen...")
 #endif // LCD_HEIGHT < 4
 

Marlin/src/lcd/language/language_el.h

 #define MSG_ERR_MAXTEMP_BED                 _UxGT("ΜΕΓΙΣΤΗ ΘΕΡΜΟΚΡΑΣΙΑΣ ΕΠ. ΕΚΤΥΠΩΣΗΣ") //SHORTEN
 #define MSG_ERR_MINTEMP_BED                 _UxGT("ΕΛΑΧΙΣΤΗ ΘΕΡΜΟΚΡΑΣΙΑΣ ΕΠ. ΕΚΤΥΠΩΣΗΣ") //SHORTEN
 #define MSG_HALTED                          _UxGT("H εκτύπωση διακόπηκε")
-#define MSG_PLEASE_RESET                    _UxGT("PLEASE RESET") //TRANSLATE
 #define MSG_HEATING                         _UxGT("Θερμαίνεται…")
 #define MSG_HEATING_COMPLETE                _UxGT("Η θέρμανση ολοκληρώθηκε.") //SHORTEN
 #define MSG_BED_HEATING                     _UxGT("Θέρμανση ΕΠ. Εκτύπωσης") //SHORTEN
 #define MSG_DELTA_CALIBRATE_Z               _UxGT("Βαθμονόμηση Z")
 #define MSG_DELTA_CALIBRATE_CENTER          _UxGT("Βαθμονόμηση κέντρου")
 
-#define MSG_INFO_MENU                       _UxGT("About Printer")
-#define MSG_INFO_PRINTER_MENU               _UxGT("Printer Info")
-#define MSG_INFO_STATS_MENU                 _UxGT("Printer Stats")
-#define MSG_INFO_BOARD_MENU                 _UxGT("Board Info")
-#define MSG_INFO_THERMISTOR_MENU            _UxGT("Thermistors")
-#define MSG_INFO_EXTRUDERS                  _UxGT("Extruders")
-#define MSG_INFO_BAUDRATE                   _UxGT("Baud")
-#define MSG_INFO_PROTOCOL                   _UxGT("Protocol")
-
-#if LCD_WIDTH >= 20
-  #define MSG_INFO_PRINT_COUNT              _UxGT("Print Count")
-  #define MSG_INFO_COMPLETED_PRINTS         _UxGT("Completed  ")
-  #define MSG_INFO_PRINT_TIME               _UxGT("Total Time ")
-#else
-  #define MSG_INFO_PRINT_COUNT              _UxGT("Prints   ")
-  #define MSG_INFO_COMPLETED_PRINTS         _UxGT("Completed")
-  #define MSG_INFO_PRINT_TIME               _UxGT("Duration ")
-#endif
-#define MSG_INFO_MIN_TEMP                   _UxGT("Min Temp")
-#define MSG_INFO_MAX_TEMP                   _UxGT("Max Temp")
-#define MSG_INFO_PSU                        _UxGT("PSU")
-
-#define MSG_FILAMENT_CHANGE_HEADER          _UxGT("CHANGE FILAMENT")
-#define MSG_FILAMENT_CHANGE_OPTION_EXTRUDE  _UxGT("Extrude more")
-#define MSG_FILAMENT_CHANGE_OPTION_RESUME   _UxGT("Resume print")
-
-#if LCD_HEIGHT >= 4
-  // Up to 3 lines allowed
-  #define MSG_FILAMENT_CHANGE_INIT_1          _UxGT("Wait for start")
-  #define MSG_FILAMENT_CHANGE_INIT_2          _UxGT("of the filament")
-  #define MSG_FILAMENT_CHANGE_INIT_3          _UxGT("change")
-  #define MSG_FILAMENT_CHANGE_UNLOAD_1        _UxGT("Wait for")
-  #define MSG_FILAMENT_CHANGE_UNLOAD_2        _UxGT("filament unload")
-  #define MSG_FILAMENT_CHANGE_INSERT_1        _UxGT("Insert filament")
-  #define MSG_FILAMENT_CHANGE_INSERT_2        _UxGT("and press button")
-  #define MSG_FILAMENT_CHANGE_INSERT_3        _UxGT("to continue...")
-  #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("Wait for")
-  #define MSG_FILAMENT_CHANGE_LOAD_2          _UxGT("filament load")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("Wait for")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_2       _UxGT("filament extrude")
-  #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("Wait for print")
-  #define MSG_FILAMENT_CHANGE_RESUME_2        _UxGT("to resume")
-#else // LCD_HEIGHT < 4
-  // Up to 2 lines allowed
-  #define MSG_FILAMENT_CHANGE_INIT_1          _UxGT("Please wait...")
-  #define MSG_FILAMENT_CHANGE_UNLOAD_1        _UxGT("Ejecting...")
-  #define MSG_FILAMENT_CHANGE_INSERT_1        _UxGT("Insert and Click")
-  #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("Loading...")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("Extruding...")
-  #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("Resuming...")
-#endif
-
 #endif // LANGUAGE_EL_H

Marlin/src/lcd/language/language_en.h

 #ifndef MSG_FILAMENT_DIAM
   #define MSG_FILAMENT_DIAM                   _UxGT("Fil. Dia.")
 #endif
+#ifndef MSG_FILAMENT_UNLOAD
+  #define MSG_FILAMENT_UNLOAD                 _UxGT("Unload mm")
+#endif
+#ifndef MSG_FILAMENT_LOAD
+  #define MSG_FILAMENT_LOAD                   _UxGT("Load mm")
+#endif
 #ifndef MSG_ADVANCE_K
   #define MSG_ADVANCE_K                       _UxGT("Advance K")
 #endif
 #ifndef MSG_FILAMENTCHANGE
   #define MSG_FILAMENTCHANGE                  _UxGT("Change filament")
 #endif
+#ifndef MSG_FILAMENTLOAD
+  #define MSG_FILAMENTLOAD                    _UxGT("Load filament")
+#endif
+#ifndef MSG_FILAMENTUNLOAD
+  #define MSG_FILAMENTUNLOAD                  _UxGT("Unload filament")
+#endif
+#ifndef MSG_FILAMENTUNLOAD_ALL
+  #define MSG_FILAMENTUNLOAD_ALL              _UxGT("Unload All")
+#endif
 #ifndef MSG_INIT_SDCARD
   #define MSG_INIT_SDCARD                     _UxGT("Init. SD card")
 #endif
   #define MSG_DAC_EEPROM_WRITE                _UxGT("DAC EEPROM Write")
 #endif
 #ifndef MSG_FILAMENT_CHANGE_HEADER
-  #define MSG_FILAMENT_CHANGE_HEADER          _UxGT("PRINT PAUSED")
+  #define MSG_FILAMENT_CHANGE_HEADER_PAUSE    _UxGT("PRINT PAUSED")
+#endif
+#ifndef MSG_FILAMENT_CHANGE_HEADER_LOAD
+  #define MSG_FILAMENT_CHANGE_HEADER_LOAD     _UxGT("LOAD FILAMENT")
+#endif
+#ifndef MSG_FILAMENT_CHANGE_HEADER_UNLOAD
+  #define MSG_FILAMENT_CHANGE_HEADER_UNLOAD   _UxGT("UNLOAD FILAMENT")
 #endif
 #ifndef MSG_FILAMENT_CHANGE_OPTION_HEADER
   #define MSG_FILAMENT_CHANGE_OPTION_HEADER   _UxGT("RESUME OPTIONS:")
 #endif
-#ifndef MSG_FILAMENT_CHANGE_OPTION_EXTRUDE
-  #define MSG_FILAMENT_CHANGE_OPTION_EXTRUDE  _UxGT("Extrude more")
+#ifndef MSG_FILAMENT_CHANGE_OPTION_PURGE
+  #define MSG_FILAMENT_CHANGE_OPTION_PURGE    _UxGT("Purge more")
 #endif
 #ifndef MSG_FILAMENT_CHANGE_OPTION_RESUME
-  #define MSG_FILAMENT_CHANGE_OPTION_RESUME   _UxGT("Resume print")
-#endif
-#ifndef MSG_FILAMENT_CHANGE_MINTEMP
-  #define MSG_FILAMENT_CHANGE_MINTEMP         _UxGT("Minimum Temp is ")
+  #define MSG_FILAMENT_CHANGE_OPTION_RESUME   _UxGT("Continue")
 #endif
 #ifndef MSG_FILAMENT_CHANGE_NOZZLE
   #define MSG_FILAMENT_CHANGE_NOZZLE          _UxGT("  Nozzle: ")
     #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("Wait for")
     #define MSG_FILAMENT_CHANGE_LOAD_2          _UxGT("filament load")
   #endif
-  #ifndef MSG_FILAMENT_CHANGE_EXTRUDE_1
-    #define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("Wait for")
-    #define MSG_FILAMENT_CHANGE_EXTRUDE_2       _UxGT("filament extrude")
+  #ifndef MSG_FILAMENT_CHANGE_PURGE_1
+    #define MSG_FILAMENT_CHANGE_PURGE_1         _UxGT("Wait for")
+    #define MSG_FILAMENT_CHANGE_PURGE_2         _UxGT("filament purge")
   #endif
   #ifndef MSG_FILAMENT_CHANGE_RESUME_1
     #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("Wait for print")
   #ifndef MSG_FILAMENT_CHANGE_LOAD_1
     #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("Loading...")
   #endif
-  #ifndef MSG_FILAMENT_CHANGE_EXTRUDE_1
-    #define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("Extruding...")
+  #ifndef MSG_FILAMENT_CHANGE_PURGE_1
+    #define MSG_FILAMENT_CHANGE_PURGE_1         _UxGT("Purging...")
   #endif
   #ifndef MSG_FILAMENT_CHANGE_RESUME_1
     #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("Resuming...")

Marlin/src/lcd/language/language_es.h

 #define MSG_DAC_PERCENT                     _UxGT("Driver %")
 #define MSG_DAC_EEPROM_WRITE                _UxGT("Escribe DAC EEPROM")
 
-#define MSG_FILAMENT_CHANGE_HEADER          _UxGT("IMPR. PAUSADA")
+#define MSG_FILAMENT_CHANGE_HEADER_PAUSE    _UxGT("IMPR. PAUSADA")
 #define MSG_FILAMENT_CHANGE_OPTION_HEADER   _UxGT("OPC. REINICIO:")
-#define MSG_FILAMENT_CHANGE_OPTION_EXTRUDE  _UxGT("Extruir mas")
 #define MSG_FILAMENT_CHANGE_OPTION_RESUME   _UxGT("Resumir imp.")
 
-#define MSG_FILAMENT_CHANGE_MINTEMP         _UxGT("Temp Minima es ")
 #define MSG_FILAMENT_CHANGE_NOZZLE          _UxGT("  Boquilla: ")
 
 #define MSG_FILAMENT_CHANGE_INIT_1          _UxGT("Esperando iniciar")
 #define MSG_FILAMENT_CHANGE_UNLOAD_2        _UxGT("filamento expulsado")
 #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("Esperado por")
 #define MSG_FILAMENT_CHANGE_LOAD_2          _UxGT("Cargar filamento")
-#define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("Esperado por")
-#define MSG_FILAMENT_CHANGE_EXTRUDE_2       _UxGT("Extruir filamento")
 #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("Esperando imp.")
 #define MSG_FILAMENT_CHANGE_RESUME_2        _UxGT("para resumir")
 #define MSG_FILAMENT_CHANGE_HEAT_1          _UxGT("Oprima boton para")

Marlin/src/lcd/language/language_eu.h

 #define MSG_DAC_PERCENT                     _UxGT("Driver %")
 #define MSG_DAC_EEPROM_WRITE                _UxGT("Idatzi DAC EEPROM")
 
-#define MSG_FILAMENT_CHANGE_HEADER          _UxGT("HARIZPIA ALDATU")
+#define MSG_FILAMENT_CHANGE_HEADER_PAUSE    _UxGT("HARIZPIA ALDATU")
 #define MSG_FILAMENT_CHANGE_OPTION_HEADER   _UxGT("ALDAKETA AUKERAK:")
-#define MSG_FILAMENT_CHANGE_OPTION_EXTRUDE  _UxGT("Gehiago estruitu")
 #define MSG_FILAMENT_CHANGE_OPTION_RESUME   _UxGT("Inprima. jarraitu")
 
-#define MSG_FILAMENT_CHANGE_MINTEMP         _UxGT("Tenp Minimoa ")
 #define MSG_FILAMENT_CHANGE_NOZZLE          _UxGT("  Pita: ")
 
 #endif // LANGUAGE_EU_H

Marlin/src/lcd/language/language_fr.h

 #define MSG_DAC_PERCENT                     _UxGT("Driver %")
 #define MSG_DAC_EEPROM_WRITE                _UxGT("DAC EEPROM sauv.")
 
-#define MSG_FILAMENT_CHANGE_HEADER          _UxGT("PRINT PAUSED")
-#define MSG_FILAMENT_CHANGE_OPTION_HEADER   _UxGT("RESUME OPTIONS:")
-#define MSG_FILAMENT_CHANGE_OPTION_EXTRUDE  _UxGT("+ extrusion")
 #define MSG_FILAMENT_CHANGE_OPTION_RESUME   _UxGT("Reprendre impr.")
-#define MSG_FILAMENT_CHANGE_MINTEMP         _UxGT("La temp. minimum est ")
 #define MSG_FILAMENT_CHANGE_NOZZLE          _UxGT("  Buse: ")
 
 #if LCD_HEIGHT >= 4
   #define MSG_FILAMENT_CHANGE_HEATING_2     _UxGT("Patientez SVP...")
   #define MSG_FILAMENT_CHANGE_LOAD_1        _UxGT("attente de")
   #define MSG_FILAMENT_CHANGE_LOAD_2        _UxGT("chargement filament")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1     _UxGT("attente de")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_2     _UxGT("extrusion filament")
   #define MSG_FILAMENT_CHANGE_RESUME_1      _UxGT("attente impression")
   #define MSG_FILAMENT_CHANGE_RESUME_2      _UxGT("pour reprendre")
 #else // LCD_HEIGHT < 4
   #define MSG_FILAMENT_CHANGE_UNLOAD_1      _UxGT("Ejection...")
   #define MSG_FILAMENT_CHANGE_INSERT_1      _UxGT("Inserer et clic")
   #define MSG_FILAMENT_CHANGE_LOAD_1        _UxGT("Chargement...")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1     _UxGT("Extrusion...")
   #define MSG_FILAMENT_CHANGE_RESUME_1      _UxGT("Reprise...")
 #endif // LCD_HEIGHT < 4
 

Marlin/src/lcd/language/language_fr_utf8.h

 #define MSG_DAC_PERCENT                     _UxGT("Driver %")
 #define MSG_DAC_EEPROM_WRITE                _UxGT("DAC EEPROM sauv.")
 
-#define MSG_FILAMENT_CHANGE_HEADER          _UxGT("PRINT PAUSED")
-#define MSG_FILAMENT_CHANGE_OPTION_HEADER   _UxGT("RESUME OPTIONS:")
-#define MSG_FILAMENT_CHANGE_OPTION_EXTRUDE  _UxGT("+ extrusion")
 #define MSG_FILAMENT_CHANGE_OPTION_RESUME   _UxGT("Reprendre impr.")
-#define MSG_FILAMENT_CHANGE_MINTEMP         _UxGT("La temp. minimum est ")
 #define MSG_FILAMENT_CHANGE_NOZZLE          _UxGT("  Buse: ")
 
 #if LCD_HEIGHT >= 4
   #define MSG_FILAMENT_CHANGE_HEATING_2     _UxGT("Patientez SVP...")
   #define MSG_FILAMENT_CHANGE_LOAD_1        _UxGT("attente de")
   #define MSG_FILAMENT_CHANGE_LOAD_2        _UxGT("chargement filament")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1     _UxGT("attente de")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_2     _UxGT("extrusion filament")
   #define MSG_FILAMENT_CHANGE_RESUME_1      _UxGT("attente impression")
   #define MSG_FILAMENT_CHANGE_RESUME_2      _UxGT("pour reprendre")
 #else // LCD_HEIGHT < 4
   #define MSG_FILAMENT_CHANGE_UNLOAD_1      _UxGT("Ejection...")
   #define MSG_FILAMENT_CHANGE_INSERT_1      _UxGT("Insérer et clic")
   #define MSG_FILAMENT_CHANGE_LOAD_1        _UxGT("Chargement...")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1     _UxGT("Extrusion...")
   #define MSG_FILAMENT_CHANGE_RESUME_1      _UxGT("Reprise...")
 #endif // LCD_HEIGHT < 4
 

Marlin/src/lcd/language/language_gl.h

 #define MSG_DAC_PERCENT                     _UxGT("Motor %")
 #define MSG_DAC_EEPROM_WRITE                _UxGT("Garda DAC EEPROM")
 
-#define MSG_FILAMENT_CHANGE_HEADER          _UxGT("PRINT PAUSED")
-#define MSG_FILAMENT_CHANGE_OPTION_HEADER   _UxGT("RESUME OPTIONS:")
-#define MSG_FILAMENT_CHANGE_OPTION_EXTRUDE  _UxGT("Extruir mais")
 #define MSG_FILAMENT_CHANGE_OPTION_RESUME   _UxGT("Segue traballo")
 
 #if LCD_HEIGHT >= 4
   #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("Agarde pola")
   #define MSG_FILAMENT_CHANGE_LOAD_2          _UxGT("carga do")
   #define MSG_FILAMENT_CHANGE_LOAD_3          _UxGT("filamento")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("Agarde pola")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_2       _UxGT("extrusion do")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_3       _UxGT("filamento")
   #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("Agarde para")
   #define MSG_FILAMENT_CHANGE_RESUME_2        _UxGT("seguir co")
   #define MSG_FILAMENT_CHANGE_RESUME_3        _UxGT("traballo")
   #define MSG_FILAMENT_CHANGE_UNLOAD_1        _UxGT("Descargando...")
   #define MSG_FILAMENT_CHANGE_INSERT_1        _UxGT("Introduza e click")
   #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("Cargando...")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("Extruindo...")
   #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("Seguindo...")
 #endif // LCD_HEIGHT < 4
 

Marlin/src/lcd/language/language_hr.h

 #define MSG_DAC_PERCENT                     _UxGT("Driver %")
 #define MSG_DAC_EEPROM_WRITE                _UxGT("DAC EEPROM Write")
 
-#define MSG_FILAMENT_CHANGE_HEADER          _UxGT("PRINT PAUSED")
-#define MSG_FILAMENT_CHANGE_OPTION_HEADER   _UxGT("RESUME OPTIONS:")
-#define MSG_FILAMENT_CHANGE_OPTION_EXTRUDE  _UxGT("Extrudiraj više")
 #define MSG_FILAMENT_CHANGE_OPTION_RESUME   _UxGT("Nastavi print")
 
 #if LCD_HEIGHT >= 4
   #define MSG_FILAMENT_CHANGE_INSERT_3        _UxGT("za nastavak...")
   #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("Pričekaj")
   #define MSG_FILAMENT_CHANGE_LOAD_2          _UxGT("filament load")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("Pričekaj")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_2       _UxGT("filament extrude")
   #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("Wait for print")
   #define MSG_FILAMENT_CHANGE_RESUME_2        _UxGT("to resume")
 #else // LCD_HEIGHT < 4
   #define MSG_FILAMENT_CHANGE_UNLOAD_1        _UxGT("Ejecting...")
   #define MSG_FILAMENT_CHANGE_INSERT_1        _UxGT("Insert and Click")
   #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("Loading...")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("Extrudiranje...")
   #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("Nastavljam...")
 #endif // LCD_HEIGHT < 4
 

Marlin/src/lcd/language/language_it.h

 #define MSG_DAC_PERCENT                     _UxGT("Driver %")
 #define MSG_DAC_EEPROM_WRITE                _UxGT("Scrivi DAC EEPROM")
 
-#define MSG_FILAMENT_CHANGE_HEADER          _UxGT("STAMPA IN PAUSA")
+#define MSG_FILAMENT_CHANGE_HEADER_PAUSE    _UxGT("STAMPA IN PAUSA")
 #define MSG_FILAMENT_CHANGE_OPTION_HEADER   _UxGT("OPZIONI:")
-#define MSG_FILAMENT_CHANGE_OPTION_EXTRUDE  _UxGT("Estrudi ancora")
 #define MSG_FILAMENT_CHANGE_OPTION_RESUME   _UxGT("Riprendi stampa")
-#define MSG_FILAMENT_CHANGE_MINTEMP         _UxGT("Temp minima è ")
 #define MSG_FILAMENT_CHANGE_NOZZLE          _UxGT("  Ugello: ")
 
 #if LCD_HEIGHT >= 4
   #define MSG_FILAMENT_CHANGE_LOAD_1        _UxGT("Attendere")
   #define MSG_FILAMENT_CHANGE_LOAD_2        _UxGT("il caricamento")
   #define MSG_FILAMENT_CHANGE_LOAD_3        _UxGT("del filamento")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1     _UxGT("Attendere")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_2     _UxGT("l'estrusione")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_3     _UxGT("del filamento")
   #define MSG_FILAMENT_CHANGE_RESUME_1      _UxGT("Attendere")
   #define MSG_FILAMENT_CHANGE_RESUME_2      _UxGT("la ripresa")
   #define MSG_FILAMENT_CHANGE_RESUME_3      _UxGT("della stampa")
   #define MSG_FILAMENT_CHANGE_INSERT_1      _UxGT("Inserisci e premi")
   #define MSG_FILAMENT_CHANGE_HEATING_1     _UxGT("Riscaldamento...")
   #define MSG_FILAMENT_CHANGE_LOAD_1        _UxGT("Caricamento...")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1     _UxGT("Estrusione...")
   #define MSG_FILAMENT_CHANGE_RESUME_1      _UxGT("Ripresa...")
 #endif // LCD_HEIGHT < 4
 

Marlin/src/lcd/language/language_kana.h

 #else
   #define MSG_DAC_PERCENT                   "DAC\xbc\xad\xc2\xd8\xae\xb8"                                      // "DACｼｭﾂﾘｮｸ" ("Driver %")
 #endif
-#define MSG_DAC_EEPROM_WRITE                MSG_STORE_EPROM                                                    // "ﾒﾓﾘﾍｶｸﾉｳ" ("DAC EEPROM Write")
-#define MSG_FILAMENT_CHANGE_HEADER          "PRINT PAUSED"
-#define MSG_FILAMENT_CHANGE_OPTION_HEADER   "RESUME OPTIONS:"
-#define MSG_FILAMENT_CHANGE_OPTION_EXTRUDE  "\xbb\xd7\xc6\xb5\xbc\xc0\xde\xbd"                                 // "ｻﾗﾆｵｼﾀﾞｽ" ("Extrude more")
+#define MSG_DAC_EEPROM_WRITE                MSG_STORE_EEPROM                                                   // "ﾒﾓﾘﾍｶｸﾉｳ" ("DAC EEPROM Write")
 #define MSG_FILAMENT_CHANGE_OPTION_RESUME   "\xcc\xdf\xd8\xdd\xc4\xbb\xb2\xb6\xb2"                             // "ﾌﾟﾘﾝﾄｻｲｶｲ" ("Resume print")
 
 #if LCD_HEIGHT >= 4
   #define MSG_FILAMENT_CHANGE_INSERT_2      "\xb8\xd8\xaf\xb8\xbd\xd9\xc4\xbf\xde\xaf\xba\xb3\xbc\xcf\xbd"     // "ｸﾘｯｸｽﾙﾄｿﾞｯｺｳｼﾏｽ" ("and press button")
   #define MSG_FILAMENT_CHANGE_LOAD_1        "\xcc\xa8\xd7\xd2\xdd\xc4\xbf\xb3\xc3\xdd\xc1\xad\xb3"             // "ﾌｨﾗﾒﾝﾄｿｳﾃﾝﾁｭｳ" ("Wait for")
   #define MSG_FILAMENT_CHANGE_LOAD_2        "\xbc\xca\xde\xd7\xb8\xb5\xcf\xc1\xb8\xc0\xde\xbb\xb2"             // "ｼﾊﾞﾗｸｵﾏﾁｸﾀﾞｻｲ" ("filament load")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1     "\xcc\xa8\xd7\xd2\xdd\xc4\xb5\xbc\xc0\xde\xbc\xc1\xad\xb3"         // "ﾌｨﾗﾒﾝﾄｵｼﾀﾞｼﾁｭｳ" ("Wait for")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_2     "\xbc\xca\xde\xd7\xb8\xb5\xcf\xc1\xb8\xc0\xde\xbb\xb2"             // "ｼﾊﾞﾗｸｵﾏﾁｸﾀﾞｻｲ" ("filament extrude")
   #define MSG_FILAMENT_CHANGE_RESUME_1      "\xcc\xdf\xd8\xdd\xc4\xa6\xbb\xb2\xb6\xb2\xbc\xcf\xbd"             // "ﾌﾟﾘﾝﾄｦｻｲｶｲｼﾏｽ" ("Wait for print")
   #define MSG_FILAMENT_CHANGE_RESUME_2      "\xbc\xca\xde\xd7\xb8\xb5\xcf\xc1\xb8\xc0\xde\xbb\xb2"             // "ｼﾊﾞﾗｸｵﾏﾁｸﾀﾞｻｲ" ("to resume")
 #else // LCD_HEIGHT < 4
     #define MSG_FILAMENT_CHANGE_INSERT_1    "\xbf\xb3\xc6\xad\xb3\xbc\x2c\xb8\xd8\xaf\xb8\xbe\xd6"                     // "ｿｳﾆｭｳｼ,ｸﾘｯｸｾﾖ" ("Insert and Click")
   #endif
   #define MSG_FILAMENT_CHANGE_LOAD_1        "\xcc\xa8\xd7\xd2\xdd\xc4\xbf\xb3\xc3\xdd\xc1\xad\xb3"             // "ﾌｨﾗﾒﾝﾄｿｳﾃﾝﾁｭｳ" ("Loading...")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1     "\xcc\xa8\xd7\xd2\xdd\xc4\xb5\xbc\xc0\xde\xbc\xc1\xad\xb3"         // "ﾌｨﾗﾒﾝﾄｵｼﾀﾞｼﾁｭｳ" ("Extruding...")
   #define MSG_FILAMENT_CHANGE_RESUME_1      "\xcc\xdf\xd8\xdd\xc4\xa6\xbb\xb2\xb6\xb2\xbc\xcf\xbd"             // "ﾌﾟﾘﾝﾄｦｻｲｶｲｼﾏｽ" ("Resuming...")
 #endif // LCD_HEIGHT < 4
 

Marlin/src/lcd/language/language_kana_utf8.h

 #define MSG_INFO_PSU                        _UxGT("デンゲンシュベツ")                // "Power Supply"
 #define MSG_DRIVE_STRENGTH                  _UxGT("モータークドウリョク")              // "Drive Strength"
 #define MSG_DAC_PERCENT                     _UxGT("DACシュツリョク %")               // "Driver %"
-#define MSG_DAC_EEPROM_WRITE                MSG_STORE_EPROM                     // "DAC EEPROM Write"
-#define MSG_FILAMENT_CHANGE_HEADER          _UxGT("PRINT PAUSED")
-#define MSG_FILAMENT_CHANGE_OPTION_HEADER   _UxGT("RESUME OPTIONS:")
-#define MSG_FILAMENT_CHANGE_OPTION_EXTRUDE  _UxGT("サラニオシダス")                 // "Extrude more"
+#define MSG_DAC_EEPROM_WRITE                MSG_STORE_EEPROM                    // "DAC EEPROM Write"
 #define MSG_FILAMENT_CHANGE_OPTION_RESUME   _UxGT("プリントサイカイ")                // "Resume print"
 #define MSG_FILAMENT_CHANGE_INIT_1          _UxGT("コウカンヲカイシシマス")            // "Wait for start"
 #define MSG_FILAMENT_CHANGE_INIT_2          _UxGT("シバラクオマチクダサイ")            // "of the filament"
 #define MSG_FILAMENT_CHANGE_INSERT_2        _UxGT("クリックスルトゾッコウシマス")         // "and press button"
 #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("フィラメントソウテンチュウ")          // "Wait for"
 #define MSG_FILAMENT_CHANGE_LOAD_2          _UxGT("シバラクオマチクダサイ")            // "filament load"
-#define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("フィラメントオシダシチュウ")          // "Wait for"
-#define MSG_FILAMENT_CHANGE_EXTRUDE_2       _UxGT("シバラクオマチクダサイ")            // "filament extrude"
 #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("プリントヲサイカイシマス")           // "Wait for print"
 #define MSG_FILAMENT_CHANGE_RESUME_2        _UxGT("シバラクオマチクダサイ")            // "to resume"
 

Marlin/src/lcd/language/language_nl.h

 #define MSG_DRIVE_STRENGTH                  _UxGT("Motorstroom")
 #define MSG_DAC_PERCENT                     _UxGT("Driver %")  //accepted English term in Dutch
 #define MSG_DAC_EEPROM_WRITE                _UxGT("DAC Opslaan")
-#define MSG_FILAMENT_CHANGE_HEADER          _UxGT("PRINT PAUSED")
-#define MSG_FILAMENT_CHANGE_OPTION_HEADER   _UxGT("RESUME OPTIONS:")
-#define MSG_FILAMENT_CHANGE_OPTION_EXTRUDE  _UxGT("Extrudeer meer")
 #define MSG_FILAMENT_CHANGE_OPTION_RESUME   _UxGT("Hervat print")
-#define MSG_FILAMENT_CHANGE_MINTEMP         _UxGT("Minimum Temp is ")
 #define MSG_FILAMENT_CHANGE_NOZZLE          _UxGT(" Nozzle: ") //accepeted English term
 //
 // Filament Change screens show up to 3 lines on a 4-line display
   #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("Wacht voor")
   #define MSG_FILAMENT_CHANGE_LOAD_2          _UxGT("filament te")
   #define MSG_FILAMENT_CHANGE_LOAD_3          _UxGT("laden")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("Wacht voor")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_2       _UxGT("filament te")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_3       _UxGT("extruderen")
-  #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("Wacht voor print")
+        #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("Wacht voor print")
   #define MSG_FILAMENT_CHANGE_RESUME_2        _UxGT("om verder")
   #define MSG_FILAMENT_CHANGE_RESUME_3        _UxGT("te gaan")
 #else // LCD_HEIGHT < 4
   #define MSG_FILAMENT_CHANGE_INSERT_2        _UxGT("en druk knop")
   #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("Wacht voor")
   #define MSG_FILAMENT_CHANGE_LOAD_2          _UxGT("inladen...")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("Wacht voor")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_2       _UxGT("extrudering")
   #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("Wacht voor")
   #define MSG_FILAMENT_CHANGE_RESUME_2        _UxGT("printing...")
 #endif // LCD_HEIGHT < 4

Marlin/src/lcd/language/language_pl-DOGM.h

 #define MSG_DAC_PERCENT                     _UxGT("Siła %")
 #define MSG_DAC_EEPROM_WRITE                _UxGT("Zapisz DAC EEPROM")
 
-#define MSG_FILAMENT_CHANGE_HEADER          _UxGT("ZMIEŃ FILAMENT")
+#define MSG_FILAMENT_CHANGE_HEADER_PAUSE    _UxGT("ZMIEŃ FILAMENT")
 #define MSG_FILAMENT_CHANGE_OPTION_HEADER   _UxGT("ZMIEŃ OPCJE:")
-#define MSG_FILAMENT_CHANGE_OPTION_EXTRUDE  _UxGT("Ekstruduj więcej")
 #define MSG_FILAMENT_CHANGE_OPTION_RESUME   _UxGT("Wznów drukowanie")
 
 #if LCD_HEIGHT >= 4
   #define MSG_FILAMENT_CHANGE_INSERT_3        _UxGT("aby kontynuować...")
   #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("Czekam na")
   #define MSG_FILAMENT_CHANGE_LOAD_2          _UxGT("włożenie filamentu")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("Czekam na")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_2       _UxGT("ekstruzję filamentu")
   #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("Czekam na")
   #define MSG_FILAMENT_CHANGE_RESUME_2        _UxGT("wznowienie druku")
 #else // LCD_HEIGHT < 4
   #define MSG_FILAMENT_CHANGE_UNLOAD_1        _UxGT("Wysuwanie...")
   #define MSG_FILAMENT_CHANGE_INSERT_1        _UxGT("Włóż i naciśnij prz.")
   #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("Ładowanie...")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("Ekstruzja...")
   #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("Wznowienie...")
 #endif // LCD_HEIGHT < 4
 

Marlin/src/lcd/language/language_pl-HD44780.h

 #define MSG_DAC_PERCENT                     _UxGT("Sila %")
 #define MSG_DAC_EEPROM_WRITE                _UxGT("Zapisz DAC EEPROM")
 
-#define MSG_FILAMENT_CHANGE_HEADER          _UxGT("ZMIEN FILAMENT")
+#define MSG_FILAMENT_CHANGE_HEADER_PAUSE    _UxGT("ZMIEN FILAMENT")
 #define MSG_FILAMENT_CHANGE_OPTION_HEADER   _UxGT("ZMIEN OPCJE:")
-#define MSG_FILAMENT_CHANGE_OPTION_EXTRUDE  _UxGT("Ekstruduj wiecej")
 #define MSG_FILAMENT_CHANGE_OPTION_RESUME   _UxGT("Wznow drukowanie")
 
 #if LCD_HEIGHT >= 4
   #define MSG_FILAMENT_CHANGE_INSERT_3        _UxGT("aby kontynuowac...")
   #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("Czekam na")
   #define MSG_FILAMENT_CHANGE_LOAD_2          _UxGT("wlozenie filamentu")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("Czekam na")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_2       _UxGT("ekstruzje filamentu")
   #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("Czekam na")
   #define MSG_FILAMENT_CHANGE_RESUME_2        _UxGT("wznowienie druku")
 #else // LCD_HEIGHT < 4
   #define MSG_FILAMENT_CHANGE_UNLOAD_1        _UxGT("Wysuwanie...")
   #define MSG_FILAMENT_CHANGE_INSERT_1        _UxGT("Wloz i nacisnij prz.")
   #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("Ladowanie...")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("Ekstruzja...")
   #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("Wznowienie...")
 #endif // LCD_HEIGHT < 4
 
   #define MSG_FILAMENT_CHANGE_INSERT_3        _UxGT("aby kontynuowac...")
   #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("Czekam na")
   #define MSG_FILAMENT_CHANGE_LOAD_2          _UxGT("wlozenie filamentu")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("Czekam na")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_2       _UxGT("ekstruzje filamentu")
   #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("Czekam na")
   #define MSG_FILAMENT_CHANGE_RESUME_2        _UxGT("wznowienie druku")
 #else // LCD_HEIGHT < 4
   #define MSG_FILAMENT_CHANGE_UNLOAD_1        _UxGT("Wysuwanie...")
   #define MSG_FILAMENT_CHANGE_INSERT_1        _UxGT("Wloz i nacisnij prz.")
   #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("Ladowanie...")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("Ekstruzja...")
   #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("Wznowienie...")
 #endif // LCD_HEIGHT < 4
 

Marlin/src/lcd/language/language_ru.h

 #define MSG_DRIVE_STRENGTH                  _UxGT("Сила привода")
 #define MSG_DAC_PERCENT                     _UxGT("Привод %")
 #define MSG_DAC_EEPROM_WRITE                _UxGT("Записи DAC EEPROM")
-#define MSG_FILAMENT_CHANGE_HEADER          _UxGT("ПЕЧАТЬ ОСТАНОВЛЕНА")
+#define MSG_FILAMENT_CHANGE_HEADER_PAUSE    _UxGT("ПЕЧАТЬ ОСТАНОВЛЕНА")
 #define MSG_FILAMENT_CHANGE_OPTION_HEADER   _UxGT("ОПЦИИ ВОЗОБНОВЛЕНИЯ:")
-#define MSG_FILAMENT_CHANGE_OPTION_EXTRUDE  _UxGT("Выдавить ещё")
 #define MSG_FILAMENT_CHANGE_OPTION_RESUME   _UxGT("Возобновить печать")
-#define MSG_FILAMENT_CHANGE_MINTEMP         _UxGT("Мин. температура")
 #define MSG_FILAMENT_CHANGE_NOZZLE          _UxGT("  Сопла: ")
 //
 // Filament Change screens show up to 3 lines on a 4-line display
   #define MSG_FILAMENT_CHANGE_INSERT_1    _UxGT("Вставь и нажми")
   #define MSG_FILAMENT_CHANGE_HEATING_1   _UxGT("Нагрев...")
   #define MSG_FILAMENT_CHANGE_LOAD_1      _UxGT("Загрузка...")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1   _UxGT("Выдавливание...")
   #define MSG_FILAMENT_CHANGE_RESUME_1    _UxGT("Возобновление...")
 #endif // LCD_HEIGHT < 4
 

Marlin/src/lcd/language/language_sk_utf8.h

 #define MSG_DAC_PERCENT                     _UxGT("Motor %")
 #define MSG_DAC_EEPROM_WRITE                _UxGT("Uložiť do EEPROM")
 
-#define MSG_FILAMENT_CHANGE_HEADER          _UxGT("PAUZA TLAČE")
+#define MSG_FILAMENT_CHANGE_HEADER_PAUSE    _UxGT("PAUZA TLAČE")
 #define MSG_FILAMENT_CHANGE_OPTION_HEADER   _UxGT("MOŽN. POKRAČ.:")
-#define MSG_FILAMENT_CHANGE_OPTION_EXTRUDE  _UxGT("Ešte vytlačiť")
 #define MSG_FILAMENT_CHANGE_OPTION_RESUME   _UxGT("Obnoviť tlač")
-#define MSG_FILAMENT_CHANGE_MINTEMP         _UxGT("Min. teplota je ")
 #define MSG_FILAMENT_CHANGE_NOZZLE          _UxGT("  Tryska: ")
 
 #if LCD_HEIGHT >= 4
   #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("Čakajte prosím")
   #define MSG_FILAMENT_CHANGE_LOAD_2          _UxGT("na zavedenie")
   #define MSG_FILAMENT_CHANGE_LOAD_3          _UxGT("filamentu")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("Čakajte prosím")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_2       _UxGT("na vytlačenie")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_3       _UxGT("filamentu")
   #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("Čakajte prosím")
   #define MSG_FILAMENT_CHANGE_RESUME_2        _UxGT("na pokračovanie")
   #define MSG_FILAMENT_CHANGE_RESUME_3        _UxGT("tlače")
   #define MSG_FILAMENT_CHANGE_INSERT_1        _UxGT("Vložte, kliknite")
   #define MSG_FILAMENT_CHANGE_HEATING_1       _UxGT("Ohrev...")
   #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("Zavádzanie...")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("Vytlačovanie...")
   #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("Pokračovanie...")
 #endif // LCD_HEIGHT < 4
 

Marlin/src/lcd/language/language_tr.h

 
 #define MSG_DRIVE_STRENGTH                  _UxGT("Sürücü Gücü")                                        // Sürücü Gücü
 #define MSG_DAC_PERCENT                     _UxGT("Sürücü %")                                           // Sürücü %
-#define MSG_FILAMENT_CHANGE_HEADER          _UxGT("PRINT PAUSED")
-#define MSG_FILAMENT_CHANGE_OPTION_HEADER   _UxGT("RESUME OPTIONS:")
 #define MSG_FILAMENT_CHANGE_OPTION_HEADER   _UxGT("Seçenekler:")                                        // Seçenekler:
-#define MSG_FILAMENT_CHANGE_OPTION_EXTRUDE  _UxGT("Daha Akıt")                                          // Daha Akıt
 #define MSG_FILAMENT_CHANGE_OPTION_RESUME   _UxGT("Baskıyı sürdür")                                     // Baskıyı sürdür
-#define MSG_FILAMENT_CHANGE_MINTEMP         _UxGT("Min. Sıcaklık")                                      // Min. Sıcaklık:
 #define MSG_FILAMENT_CHANGE_NOZZLE          _UxGT("  Nozül: ")                                          //   Nozül:
 
 #if LCD_HEIGHT >= 4
   #define MSG_FILAMENT_CHANGE_HEATING_2       _UxGT("Lütfen Bekleyin...")                               // Lütfen Bekleyin...
   #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("Bekleniyor")                                       // Bekleniyor
   #define MSG_FILAMENT_CHANGE_LOAD_2          _UxGT("filamanın yüklenmesi")                             // filamanın yüklenmesi
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("Bekleniyor")                                       // Bekleniyor
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_2       _UxGT("filaman akması")                                   // filaman akması
   #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("Baskının sürdürülmesini")                          // Baskının sürdürülmesini
   #define MSG_FILAMENT_CHANGE_RESUME_2        _UxGT("bekle")                                            // bekle
 #else // LCD_HEIGHT < 4
   #define MSG_FILAMENT_CHANGE_UNLOAD_1        _UxGT("Çıkartılıyor...")                                  // Çıkartılıyor...
   #define MSG_FILAMENT_CHANGE_INSERT_1        _UxGT("Yükle ve bas")                                     // Yükle ve bas
   #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("Yüklüyor...")                                      // Yüklüyor...
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("Akıtılıyor...")                                    // Akıtılıyor...
   #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("Sürdürülüyor...")                                  // Sürdürülüyor...
 #endif // LCD_HEIGHT < 4
 

Marlin/src/lcd/language/language_uk.h

 #define MSG_DAC_PERCENT                     _UxGT("% мотору")
 #define MSG_DAC_EEPROM_WRITE                _UxGT("Запис ЦАП на ПЗП")
 
-#define MSG_FILAMENT_CHANGE_HEADER          _UxGT("PRINT PAUSED")
-#define MSG_FILAMENT_CHANGE_OPTION_HEADER   _UxGT("RESUME OPTIONS:")
-#define MSG_FILAMENT_CHANGE_OPTION_EXTRUDE  _UxGT("Екструдувати")
 #define MSG_FILAMENT_CHANGE_OPTION_RESUME   _UxGT("Відновити друк")
 
 #if LCD_HEIGHT >= 4
   #define MSG_FILAMENT_CHANGE_INSERT_3        _UxGT("продовження...")
   #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("Зачекайте на")
   #define MSG_FILAMENT_CHANGE_LOAD_2          _UxGT("ввід волокна")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("Зачекайте на")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_2       _UxGT("екструзію")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_3       _UxGT("волокна")
   #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("Зачекайте на")
   #define MSG_FILAMENT_CHANGE_RESUME_2        _UxGT("відновлення")
   #define MSG_FILAMENT_CHANGE_RESUME_3        _UxGT("друку")
   #define MSG_FILAMENT_CHANGE_UNLOAD_1        _UxGT("Вивід...")
   #define MSG_FILAMENT_CHANGE_INSERT_1        _UxGT("Вставте і нат.")
   #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("Ввід...")
-  #define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("Екструзія...")
   #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("Відновлення...")
 #endif // LCD_HEIGHT < 4
 

Marlin/src/lcd/language/language_zh_CN.h

 #define MSG_INFO_MAX_TEMP                   _UxGT("最高温度")  //"Max Temp"
 #define MSG_INFO_PSU                        _UxGT("电源供应")  //"Power Supply"
 
-#define MSG_FILAMENT_CHANGE_HEADER          _UxGT("PRINT PAUSED")
-#define MSG_FILAMENT_CHANGE_OPTION_HEADER   _UxGT("RESUME OPTIONS:")
-#define MSG_FILAMENT_CHANGE_OPTION_EXTRUDE  _UxGT("挤出更多")  //"Extrude more"
 #define MSG_FILAMENT_CHANGE_OPTION_RESUME   _UxGT("恢复打印")  //"Resume print"
 
 #if LCD_HEIGHT >= 4
 #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("等待")  //"Wait for"
 #define MSG_FILAMENT_CHANGE_LOAD_2          _UxGT("进料")  //"filament load"
 #define MSG_FILAMENT_CHANGE_LOAD_3          _UxGT("")  //""
-#define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("等待")  //"Wait for"
-#define MSG_FILAMENT_CHANGE_EXTRUDE_2       _UxGT("丝料挤出")  //"filament extrude"
-#define MSG_FILAMENT_CHANGE_EXTRUDE_3       _UxGT("")  //""
 #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("等待打印")  //"Wait for print"
 #define MSG_FILAMENT_CHANGE_RESUME_2        _UxGT("恢复")  //"to resume"
 #define MSG_FILAMENT_CHANGE_RESUME_3        _UxGT("")  //""
 #define MSG_FILAMENT_CHANGE_UNLOAD_1        _UxGT("退出中 ...")  //"Ejecting..."
 #define MSG_FILAMENT_CHANGE_INSERT_1        _UxGT("插入并单击")  //"Insert and Click"
 #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("装载中 ...")  //"Loading..."
-#define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("挤出中 ...")  //"Extruding..."
 #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("恢复中 ...")  //"Resuming..."
 #endif // LCD_HEIGHT < 4
 

Marlin/src/lcd/language/language_zh_TW.h

 #define MSG_INFO_MAX_TEMP                   _UxGT("最高溫度")  //"Max Temp"
 #define MSG_INFO_PSU                        _UxGT("電源供應")  //"Power Supply"
 
-#define MSG_FILAMENT_CHANGE_HEADER          _UxGT("PRINT PAUSED")
-#define MSG_FILAMENT_CHANGE_OPTION_HEADER   _UxGT("RESUME OPTIONS:")
-#define MSG_FILAMENT_CHANGE_OPTION_EXTRUDE  _UxGT("擠出更多")  //"Extrude more"
 #define MSG_FILAMENT_CHANGE_OPTION_RESUME   _UxGT("恢復列印")  //"Resume print"
 
 #if LCD_HEIGHT >= 4
 #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("等待")  //"Wait for"
 #define MSG_FILAMENT_CHANGE_LOAD_2          _UxGT("進料")  //"filament load"
 #define MSG_FILAMENT_CHANGE_LOAD_3          _UxGT("")  //""
-#define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("等待")  //"Wait for"
-#define MSG_FILAMENT_CHANGE_EXTRUDE_2       _UxGT("絲料擠出")  //"filament extrude"
-#define MSG_FILAMENT_CHANGE_EXTRUDE_3       _UxGT("")  //""
 #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("等待列印")  //"Wait for print"
 #define MSG_FILAMENT_CHANGE_RESUME_2        _UxGT("恢復")  //"to resume"
 #define MSG_FILAMENT_CHANGE_RESUME_3        _UxGT("")  //""
 #define MSG_FILAMENT_CHANGE_UNLOAD_1        _UxGT("退出中 ...")  //"Ejecting..."
 #define MSG_FILAMENT_CHANGE_INSERT_1        _UxGT("插入並點擊")  //"Insert and Click"
 #define MSG_FILAMENT_CHANGE_LOAD_1          _UxGT("載入中 ...")  //"Loading..."
-#define MSG_FILAMENT_CHANGE_EXTRUDE_1       _UxGT("擠出中 ...")  //"Extruding..."
 #define MSG_FILAMENT_CHANGE_RESUME_1        _UxGT("恢復中 ...")  //"Resuming..."
 #endif // LCD_HEIGHT < 4
 

Marlin/src/lcd/ultralcd.cpp

 
 #include "../Marlin.h"
 
+#if ENABLED(ADVANCED_PAUSE_FEATURE)
+  #include "../feature/pause.h"
+#endif
+
 #if ENABLED(PRINTCOUNTER) && ENABLED(LCD_INFO_MENU)
   #include "../libs/duration_t.h"
 #endif
     void lcd_control_temperature_preheat_material2_settings_menu();
   #endif
 
-  #if DISABLED(NO_VOLUMETRICS)
+  #if DISABLED(NO_VOLUMETRICS) || ENABLED(ADVANCED_PAUSE_FEATURE)
     void lcd_control_filament_menu();
   #endif
 
   #endif
 
   #if ENABLED(ADVANCED_PAUSE_FEATURE)
-    void lcd_advanced_pause_toocold_menu();
+    #if E_STEPPERS > 1 || ENABLED(FILAMENT_LOAD_UNLOAD_GCODES)
+      void lcd_change_filament_menu();
+    #else
+      void lcd_temp_menu_e0_filament_change();
+    #endif
     void lcd_advanced_pause_option_menu();
     void lcd_advanced_pause_init_message();
     void lcd_advanced_pause_unload_message();
     void lcd_advanced_pause_insert_message();
     void lcd_advanced_pause_load_message();
     void lcd_advanced_pause_heat_nozzle();
-    void lcd_advanced_pause_extrude_message();
+    void lcd_advanced_pause_purge_message();
     void lcd_advanced_pause_resume_message();
   #endif
 
       if (encoderLine == _thisItemNr && lcd_clicked) { \
         lcd_clicked = false
 
-  #define _MENU_ITEM_PART_2(TYPE, LABEL, ...) \
+  #define _MENU_ITEM_PART_2(TYPE, PLABEL, ...) \
         menu_action_ ## TYPE(__VA_ARGS__); \
         if (screen_changed) return; \
       } \
       if (lcdDrawUpdate) \
-        lcd_implementation_drawmenu_ ## TYPE(encoderLine == _thisItemNr, _lcdLineNr, PSTR(LABEL), ## __VA_ARGS__); \
+        lcd_implementation_drawmenu_ ## TYPE(encoderLine == _thisItemNr, _lcdLineNr, PLABEL, ## __VA_ARGS__); \
     } \
     ++_thisItemNr
 
-  #define MENU_ITEM(TYPE, LABEL, ...) do { \
+  #define MENU_ITEM_P(TYPE, PLABEL, ...) do { \
       _skipStatic = false; \
       _MENU_ITEM_PART_1(TYPE, ## __VA_ARGS__); \
-      _MENU_ITEM_PART_2(TYPE, LABEL, ## __VA_ARGS__); \
+      _MENU_ITEM_PART_2(TYPE, PLABEL, ## __VA_ARGS__); \
     }while(0)
 
+  #define MENU_ITEM(TYPE, LABEL, ...) MENU_ITEM_P(TYPE, PSTR(LABEL), ## __VA_ARGS__)
+
   #define MENU_BACK(LABEL) MENU_ITEM(back, LABEL, 0)
 
   // Used to print static text with no visible cursor.
   // Parameters: label [, bool center [, bool invert [, char *value] ] ]
-  #define STATIC_ITEM(LABEL, ...) \
+  #define STATIC_ITEM_P(LABEL, ...) \
     if (_menuLineNr == _thisItemNr) { \
       if (_skipStatic && encoderLine <= _thisItemNr) { \
         encoderPosition += ENCODER_STEPS_PER_MENU_ITEM; \
         ++encoderLine; \
       } \
       if (lcdDrawUpdate) \
-        lcd_implementation_drawmenu_static(_lcdLineNr, PSTR(LABEL), ## __VA_ARGS__); \
+        lcd_implementation_drawmenu_static(_lcdLineNr, LABEL, ## __VA_ARGS__); \
     } \
     ++_thisItemNr
 
+  #define STATIC_ITEM(LABEL, ...) STATIC_ITEM_P(PSTR(LABEL), ## __VA_ARGS__)
+
   #if ENABLED(ENCODER_RATE_MULTIPLIER)
 
     bool encoderRateMultiplierEnabled;
     /**
      * MENU_MULTIPLIER_ITEM generates drawing and handling code for a multiplier menu item
      */
-    #define MENU_MULTIPLIER_ITEM(type, label, ...) do { \
-        _MENU_ITEM_PART_1(type, ## __VA_ARGS__); \
+    #define MENU_MULTIPLIER_ITEM(TYPE, LABEL, ...) do { \
+        _MENU_ITEM_PART_1(TYPE, ## __VA_ARGS__); \
         encoderRateMultiplierEnabled = true; \
         lastEncoderMovementMillis = 0; \
-        _MENU_ITEM_PART_2(type, label, ## __VA_ARGS__); \
+        _MENU_ITEM_PART_2(TYPE, PSTR(LABEL), ## __VA_ARGS__); \
       }while(0)
 
   #else // !ENCODER_RATE_MULTIPLIER
   #endif // !ENCODER_RATE_MULTIPLIER
 
   #define MENU_ITEM_DUMMY() do { _thisItemNr++; }while(0)
-  #define MENU_ITEM_EDIT(type, label, ...) MENU_ITEM(setting_edit_ ## type, label, PSTR(label), ## __VA_ARGS__)
-  #define MENU_ITEM_EDIT_CALLBACK(type, label, ...) MENU_ITEM(setting_edit_callback_ ## type, label, PSTR(label), ## __VA_ARGS__)
+  #define MENU_ITEM_EDIT(TYPE, LABEL, ...) MENU_ITEM(setting_edit_ ## TYPE, LABEL, PSTR(LABEL), ## __VA_ARGS__)
+  #define MENU_ITEM_EDIT_CALLBACK(TYPE, LABEL, ...) MENU_ITEM(setting_edit_callback_ ## TYPE, LABEL, PSTR(LABEL), ## __VA_ARGS__)
   #if ENABLED(ENCODER_RATE_MULTIPLIER)
-    #define MENU_MULTIPLIER_ITEM_EDIT(type, label, ...) MENU_MULTIPLIER_ITEM(setting_edit_ ## type, label, PSTR(label), ## __VA_ARGS__)
-    #define MENU_MULTIPLIER_ITEM_EDIT_CALLBACK(type, label, ...) MENU_MULTIPLIER_ITEM(setting_edit_callback_ ## type, label, PSTR(label), ## __VA_ARGS__)
+    #define MENU_MULTIPLIER_ITEM_EDIT(TYPE, LABEL, ...) MENU_MULTIPLIER_ITEM(setting_edit_ ## TYPE, LABEL, PSTR(LABEL), ## __VA_ARGS__)
+    #define MENU_MULTIPLIER_ITEM_EDIT_CALLBACK(TYPE, LABEL, ...) MENU_MULTIPLIER_ITEM(setting_edit_callback_ ## TYPE, LABEL, PSTR(LABEL), ## __VA_ARGS__)
   #else // !ENCODER_RATE_MULTIPLIER
-    #define MENU_MULTIPLIER_ITEM_EDIT(type, label, ...) MENU_ITEM(setting_edit_ ## type, label, PSTR(label), ## __VA_ARGS__)
-    #define MENU_MULTIPLIER_ITEM_EDIT_CALLBACK(type, label, ...) MENU_ITEM(setting_edit_callback_ ## type, label, PSTR(label), ## __VA_ARGS__)
+    #define MENU_MULTIPLIER_ITEM_EDIT(TYPE, LABEL, ...) MENU_ITEM(setting_edit_ ## TYPE, LABEL, PSTR(LABEL), ## __VA_ARGS__)
+    #define MENU_MULTIPLIER_ITEM_EDIT_CALLBACK(TYPE, LABEL, ...) MENU_ITEM(setting_edit_callback_ ## TYPE, LABEL, PSTR(LABEL), ## __VA_ARGS__)
   #endif // !ENCODER_RATE_MULTIPLIER
 
   /**
     #endif
   }
 
-  #if ENABLED(ADVANCED_PAUSE_FEATURE)
-
-    void lcd_enqueue_filament_change(
-      #if EXTRUDERS > 1
-        const uint8_t extruder
-      #endif
-    ) {
-
-      #if ENABLED(PREVENT_COLD_EXTRUSION)
-        if (!DEBUGGING(DRYRUN) && thermalManager.tooColdToExtrude(active_extruder)) {
-          lcd_save_previous_screen();
-          lcd_goto_screen(lcd_advanced_pause_toocold_menu);
-          return;
-        }
-      #endif
-
-      lcd_advanced_pause_show_message(ADVANCED_PAUSE_MESSAGE_INIT);
-
-      #if EXTRUDERS <= 1
-        enqueue_and_echo_commands_P(PSTR("M600 B0"));
-      #else
-        char *command_M600;
-        switch (extruder) {
-          case 0: command_M600 = PSTR("M600 B0 T0"); break;
-          case 1: command_M600 = PSTR("M600 B0 T1"); break;
-          #if EXTRUDERS > 2
-            case 2: command_M600 = PSTR("M600 B0 T2"); break;
-            #if EXTRUDERS > 3
-              case 3: command_M600 = PSTR("M600 B0 T3"); break;
-              #if EXTRUDERS > 4
-                case 4: command_M600 = PSTR("M600 B0 T4"); break;
-              #endif // EXTRUDERS > 4
-            #endif // EXTRUDERS > 3
-          #endif // EXTRUDERS > 2
-        }
-        enqueue_and_echo_commands_P(command_M600);
-      #endif // EXTRUDERS > 1
-    }
-
-    #if EXTRUDERS > 1
-      void lcd_enqueue_filament_change_e0() { lcd_enqueue_filament_change(0); }
-      void lcd_enqueue_filament_change_e1() { lcd_enqueue_filament_change(1); }
-      #if EXTRUDERS > 2
-        void lcd_enqueue_filament_change_e2() { lcd_enqueue_filament_change(2); }
-        #if EXTRUDERS > 3
-          void lcd_enqueue_filament_change_e3() { lcd_enqueue_filament_change(3); }
-          #if EXTRUDERS > 4
-            void lcd_enqueue_filament_change_e4() { lcd_enqueue_filament_change(4); }
-          #endif // EXTRUDERS > 4
-        #endif // EXTRUDERS > 3
-      #endif // EXTRUDERS > 2
-    #endif // EXTRUDERS > 1
-
-  #endif // ADVANCED_PAUSE_FEATURE
-
   // First Fan Speed title in "Tune" and "Control>Temperature" menus
   #if FAN_COUNT > 0 && HAS_FAN0
     #if FAN_COUNT > 1
     // Change filament
     //
     #if ENABLED(ADVANCED_PAUSE_FEATURE)
-      #if EXTRUDERS > 1
-        if (!thermalManager.tooColdToExtrude(0))
-          MENU_ITEM(function, MSG_FILAMENTCHANGE " " MSG_E1, lcd_enqueue_filament_change_e0);
-        if (!thermalManager.tooColdToExtrude(1))
-          MENU_ITEM(function, MSG_FILAMENTCHANGE " " MSG_E2, lcd_enqueue_filament_change_e1);
-        #if EXTRUDERS > 2
-          if (!thermalManager.tooColdToExtrude(2))
-            MENU_ITEM(function, MSG_FILAMENTCHANGE " " MSG_E3, lcd_enqueue_filament_change_e2);
-          #if EXTRUDERS > 3
-            if (!thermalManager.tooColdToExtrude(3))
-              MENU_ITEM(function, MSG_FILAMENTCHANGE " " MSG_E4, lcd_enqueue_filament_change_e3);
-            #if EXTRUDERS > 4
-              if (!thermalManager.tooColdToExtrude(4))
-                MENU_ITEM(function, MSG_FILAMENTCHANGE " " MSG_E5, lcd_enqueue_filament_change_e4);
-            #endif // EXTRUDERS > 4
-          #endif // EXTRUDERS > 3
-        #endif // EXTRUDERS > 2
+      #if E_STEPPERS == 1 && !ENABLED(FILAMENT_LOAD_UNLOAD_GCODES)
+        if (!thermalManager.targetTooColdToExtrude(active_extruder))
+          MENU_ITEM(gcode, MSG_FILAMENTCHANGE, PSTR("M600 B0"));
+        else
+          MENU_ITEM(submenu, MSG_FILAMENTCHANGE, lcd_temp_menu_e0_filament_change);
       #else
-        if (!thermalManager.tooColdToExtrude(active_extruder))
-          MENU_ITEM(function, MSG_FILAMENTCHANGE, lcd_enqueue_filament_change);
+        MENU_ITEM(submenu, MSG_FILAMENTCHANGE, lcd_change_filament_menu);
       #endif
     #endif
 
       // Set Home Offsets
       //
       MENU_ITEM(function, MSG_SET_HOME_OFFSETS, lcd_set_home_offsets);
-      //MENU_ITEM(gcode, MSG_SET_ORIGIN, PSTR("G92 X0 Y0 Z0"));
     #endif
 
     //
     //
     #if ENABLED(ADVANCED_PAUSE_FEATURE)
       if (!IS_SD_FILE_OPEN) {
-        #if EXTRUDERS > 1
-          if (!thermalManager.tooColdToExtrude(0))
-            MENU_ITEM(function, MSG_FILAMENTCHANGE " " MSG_E1, lcd_enqueue_filament_change_e0);
-          if (!thermalManager.tooColdToExtrude(1))
-            MENU_ITEM(function, MSG_FILAMENTCHANGE " " MSG_E2, lcd_enqueue_filament_change_e1);
-          #if EXTRUDERS > 2
-            if (!thermalManager.tooColdToExtrude(2))
-              MENU_ITEM(function, MSG_FILAMENTCHANGE " " MSG_E3, lcd_enqueue_filament_change_e2);
-            #if EXTRUDERS > 3
-              if (!thermalManager.tooColdToExtrude(3))
-                MENU_ITEM(function, MSG_FILAMENTCHANGE " " MSG_E4, lcd_enqueue_filament_change_e3);
-              #if EXTRUDERS > 4
-                if (!thermalManager.tooColdToExtrude(4))
-                  MENU_ITEM(function, MSG_FILAMENTCHANGE " " MSG_E5, lcd_enqueue_filament_change_e4);
-              #endif // EXTRUDERS > 4
-            #endif // EXTRUDERS > 3
-          #endif // EXTRUDERS > 2
+        #if E_STEPPERS == 1 && !ENABLED(FILAMENT_LOAD_UNLOAD_GCODES)
+          if (!thermalManager.targetTooColdToExtrude(active_extruder))
+            MENU_ITEM(gcode, MSG_FILAMENTCHANGE, PSTR("M600 B0"));
+          else
+            MENU_ITEM(submenu, MSG_FILAMENTCHANGE, lcd_temp_menu_e0_filament_change);
         #else
-          if (!thermalManager.tooColdToExtrude(active_extruder))
-            MENU_ITEM(function, MSG_FILAMENTCHANGE, lcd_enqueue_filament_change);
+          MENU_ITEM(submenu, MSG_FILAMENTCHANGE, lcd_change_filament_menu);
         #endif
       }
     #endif // ADVANCED_PAUSE_FEATURE
     MENU_ITEM(submenu, MSG_TEMPERATURE, lcd_control_temperature_menu);
     MENU_ITEM(submenu, MSG_MOTION, lcd_control_motion_menu);
 
-    #if DISABLED(NO_VOLUMETRICS)
+    #if DISABLED(NO_VOLUMETRICS) || ENABLED(ADVANCED_PAUSE_FEATURE)
       MENU_ITEM(submenu, MSG_FILAMENT, lcd_control_filament_menu);
     #elif ENABLED(LIN_ADVANCE)
       MENU_ITEM_EDIT(float3, MSG_ADVANCE_K, &planner.extruder_advance_k, 0, 999);
     #endif
 
     #if HAS_LCD_CONTRAST
-      MENU_ITEM_EDIT_CALLBACK(int3, MSG_CONTRAST, (int16_t*) &lcd_contrast, LCD_CONTRAST_MIN, LCD_CONTRAST_MAX, lcd_callback_set_contrast, true);
+      MENU_ITEM_EDIT_CALLBACK(int3, MSG_CONTRAST, &lcd_contrast, LCD_CONTRAST_MIN, LCD_CONTRAST_MAX, lcd_callback_set_contrast, true);
     #endif
     #if ENABLED(FWRETRACT)
       MENU_ITEM(submenu, MSG_RETRACT, lcd_control_retract_menu);
 
   #if DISABLED(SLIM_LCD_MENUS)
 
-    void _lcd_control_temperature_preheat_settings_menu(uint8_t material) {
+    void _lcd_control_temperature_preheat_settings_menu(const uint8_t material) {
       #if HOTENDS > 4
         #define MINTEMP_ALL MIN5(HEATER_0_MINTEMP, HEATER_1_MINTEMP, HEATER_2_MINTEMP, HEATER_3_MINTEMP, HEATER_4_MINTEMP)
         #define MAXTEMP_ALL MAX5(HEATER_0_MAXTEMP, HEATER_1_MAXTEMP, HEATER_2_MAXTEMP, HEATER_3_MAXTEMP, HEATER_4_MAXTEMP)
     END_MENU();
   }
 
-  #if DISABLED(NO_VOLUMETRICS)
+  #if DISABLED(NO_VOLUMETRICS) || ENABLED(ADVANCED_PAUSE_FEATURE)
     /**
      *
      * "Control" > "Filament" submenu
         MENU_ITEM_EDIT(float3, MSG_ADVANCE_K, &planner.extruder_advance_k, 0, 999);
       #endif
 
-      MENU_ITEM_EDIT_CALLBACK(bool, MSG_VOLUMETRIC_ENABLED, &parser.volumetric_enabled, planner.calculate_volumetric_multipliers);
+      #if DISABLED(NO_VOLUMETRICS)
+        MENU_ITEM_EDIT_CALLBACK(bool, MSG_VOLUMETRIC_ENABLED, &parser.volumetric_enabled, planner.calculate_volumetric_multipliers);
+
+        if (parser.volumetric_enabled) {
+          #if EXTRUDERS == 1
+            MENU_MULTIPLIER_ITEM_EDIT_CALLBACK(float43, MSG_FILAMENT_DIAM, &planner.filament_size[0], 1.5, 3.25, planner.calculate_volumetric_multipliers);
+          #else // EXTRUDERS > 1
+            MENU_MULTIPLIER_ITEM_EDIT_CALLBACK(float43, MSG_FILAMENT_DIAM, &planner.filament_size[active_extruder], 1.5, 3.25, planner.calculate_volumetric_multipliers);
+            MENU_MULTIPLIER_ITEM_EDIT_CALLBACK(float43, MSG_FILAMENT_DIAM MSG_DIAM_E1, &planner.filament_size[0], 1.5, 3.25, planner.calculate_volumetric_multipliers);
+            MENU_MULTIPLIER_ITEM_EDIT_CALLBACK(float43, MSG_FILAMENT_DIAM MSG_DIAM_E2, &planner.filament_size[1], 1.5, 3.25, planner.calculate_volumetric_multipliers);
+            #if EXTRUDERS > 2
+              MENU_MULTIPLIER_ITEM_EDIT_CALLBACK(float43, MSG_FILAMENT_DIAM MSG_DIAM_E3, &planner.filament_size[2], 1.5, 3.25, planner.calculate_volumetric_multipliers);
+            #if EXTRUDERS > 3
+              MENU_MULTIPLIER_ITEM_EDIT_CALLBACK(float43, MSG_FILAMENT_DIAM MSG_DIAM_E4, &planner.filament_size[3], 1.5, 3.25, planner.calculate_volumetric_multipliers);
+              #if EXTRUDERS > 4
+                  MENU_MULTIPLIER_ITEM_EDIT_CALLBACK(float43, MSG_FILAMENT_DIAM MSG_DIAM_E5, &planner.filament_size[4], 1.5, 3.25, planner.calculate_volumetric_multipliers);
+                #endif // EXTRUDERS > 4
+              #endif // EXTRUDERS > 3
+            #endif // EXTRUDERS > 2
+          #endif // EXTRUDERS > 1
+        }
+      #endif
+
+      #if ENABLED(ADVANCED_PAUSE_FEATURE)
+        const float extrude_maxlength =
+          #if ENABLED(PREVENT_LENGTHY_EXTRUDE)
+            EXTRUDE_MAXLENGTH
+          #else
+            999.0f
+          #endif
+        ;
 
-      if (parser.volumetric_enabled) {
         #if EXTRUDERS == 1
-          MENU_MULTIPLIER_ITEM_EDIT_CALLBACK(float43, MSG_FILAMENT_DIAM, &planner.filament_size[0], 1.5, 3.25, planner.calculate_volumetric_multipliers);
+          MENU_MULTIPLIER_ITEM_EDIT(float3, MSG_FILAMENT_UNLOAD, &filament_change_unload_length[0], 0.0, extrude_maxlength);
         #else // EXTRUDERS > 1
-          MENU_MULTIPLIER_ITEM_EDIT_CALLBACK(float43, MSG_FILAMENT_DIAM, &planner.filament_size[active_extruder], 1.5, 3.25, planner.calculate_volumetric_multipliers);
-          MENU_MULTIPLIER_ITEM_EDIT_CALLBACK(float43, MSG_FILAMENT_DIAM MSG_DIAM_E1, &planner.filament_size[0], 1.5, 3.25, planner.calculate_volumetric_multipliers);
-          MENU_MULTIPLIER_ITEM_EDIT_CALLBACK(float43, MSG_FILAMENT_DIAM MSG_DIAM_E2, &planner.filament_size[1], 1.5, 3.25, planner.calculate_volumetric_multipliers);
+          MENU_MULTIPLIER_ITEM_EDIT(float3, MSG_FILAMENT_UNLOAD, &filament_change_unload_length[active_extruder], 0.0, extrude_maxlength);
+          MENU_MULTIPLIER_ITEM_EDIT(float3, MSG_FILAMENT_UNLOAD MSG_DIAM_E1, &filament_change_unload_length[0], 0.0, extrude_maxlength);
+          MENU_MULTIPLIER_ITEM_EDIT(float3, MSG_FILAMENT_UNLOAD MSG_DIAM_E2, &filament_change_unload_length[1], 0.0, extrude_maxlength);
           #if EXTRUDERS > 2
-            MENU_MULTIPLIER_ITEM_EDIT_CALLBACK(float43, MSG_FILAMENT_DIAM MSG_DIAM_E3, &planner.filament_size[2], 1.5, 3.25, planner.calculate_volumetric_multipliers);
-            #if EXTRUDERS > 3
-              MENU_MULTIPLIER_ITEM_EDIT_CALLBACK(float43, MSG_FILAMENT_DIAM MSG_DIAM_E4, &planner.filament_size[3], 1.5, 3.25, planner.calculate_volumetric_multipliers);
-              #if EXTRUDERS > 4
-                MENU_MULTIPLIER_ITEM_EDIT_CALLBACK(float43, MSG_FILAMENT_DIAM MSG_DIAM_E5, &planner.filament_size[4], 1.5, 3.25, planner.calculate_volumetric_multipliers);
+            MENU_MULTIPLIER_ITEM_EDIT(float3, MSG_FILAMENT_UNLOAD MSG_DIAM_E3, &filament_change_unload_length[2], 0.0, extrude_maxlength);
+          #if EXTRUDERS > 3
+            MENU_MULTIPLIER_ITEM_EDIT(float3, MSG_FILAMENT_UNLOAD MSG_DIAM_E4, &filament_change_unload_length[3], 0.0, extrude_maxlength);
+            #if EXTRUDERS > 4
+                MENU_MULTIPLIER_ITEM_EDIT(float3, MSG_FILAMENT_UNLOAD MSG_DIAM_E5, &filament_change_unload_length[4], 0.0, extrude_maxlength);
               #endif // EXTRUDERS > 4
             #endif // EXTRUDERS > 3
           #endif // EXTRUDERS > 2
         #endif // EXTRUDERS > 1
-      }
+
+        #if EXTRUDERS == 1
+          MENU_MULTIPLIER_ITEM_EDIT(float3, MSG_FILAMENT_LOAD, &filament_change_load_length[0], 0.0, extrude_maxlength);
+        #else // EXTRUDERS > 1
+          MENU_MULTIPLIER_ITEM_EDIT(float3, MSG_FILAMENT_LOAD, &filament_change_load_length[active_extruder], 0.0, extrude_maxlength);
+          MENU_MULTIPLIER_ITEM_EDIT(float3, MSG_FILAMENT_LOAD MSG_DIAM_E1, &filament_change_load_length[0], 0.0, extrude_maxlength);
+          MENU_MULTIPLIER_ITEM_EDIT(float3, MSG_FILAMENT_LOAD MSG_DIAM_E2, &filament_change_load_length[1], 0.0, extrude_maxlength);
+          #if EXTRUDERS > 2
+            MENU_MULTIPLIER_ITEM_EDIT(float3, MSG_FILAMENT_LOAD MSG_DIAM_E3, &filament_change_load_length[2], 0.0, extrude_maxlength);
+          #if EXTRUDERS > 3
+            MENU_MULTIPLIER_ITEM_EDIT(float3, MSG_FILAMENT_LOAD MSG_DIAM_E4, &filament_change_load_length[3], 0.0, extrude_maxlength);
+            #if EXTRUDERS > 4
+                MENU_MULTIPLIER_ITEM_EDIT(float3, MSG_FILAMENT_LOAD MSG_DIAM_E5, &filament_change_load_length[4], 0.0, extrude_maxlength);
+              #endif // EXTRUDERS > 4
+            #endif // EXTRUDERS > 3
+          #endif // EXTRUDERS > 2
+        #endif // EXTRUDERS > 1
+      #endif
 
       END_MENU();
     }
-  #endif // !NO_VOLUMETRICS
+  #endif // !NO_VOLUMETRICS || ADVANCED_PAUSE_FEATURE
 
   /**
    *
    */
   #if ENABLED(ADVANCED_PAUSE_FEATURE)
 
+    /**
+     *
+     * "Change Filament" > "Change/Unload/Load Filament" submenu
+     *
+     */
+    static AdvancedPauseMode _change_filament_temp_mode;
+    static int8_t _change_filament_temp_extruder;
+
+    static const char* _change_filament_temp_command() {
+      switch (_change_filament_temp_mode) {
+        case ADVANCED_PAUSE_MODE_LOAD_FILAMENT:
+          return PSTR("M701 T%d");
+        case ADVANCED_PAUSE_MODE_UNLOAD_FILAMENT:
+          return _change_filament_temp_extruder >= 0 ? PSTR("M702 T%d") : PSTR("M702 ;%d");
+        case ADVANCED_PAUSE_MODE_PAUSE_PRINT:
+        default:
+          return PSTR("M600 B0 T%d");
+      }
+      return PSTR(MSG_FILAMENTCHANGE);
+    }
+
+    void _change_filament_temp(const uint8_t index) {
+      char cmd[11];
+      sprintf_P(cmd, _change_filament_temp_command(), _change_filament_temp_extruder);
+      thermalManager.setTargetHotend(index == 1 ? PREHEAT_1_TEMP_HOTEND : PREHEAT_2_TEMP_HOTEND, _change_filament_temp_extruder);
+      lcd_enqueue_command(cmd);
+    }
+    void _lcd_change_filament_temp_1_menu() { _change_filament_temp(1); }
+    void _lcd_change_filament_temp_2_menu() { _change_filament_temp(2); }
+
+    static const char* change_filament_header(const AdvancedPauseMode mode) {
+      switch (mode) {
+        case ADVANCED_PAUSE_MODE_LOAD_FILAMENT:
+          return PSTR(MSG_FILAMENTLOAD);
+        case ADVANCED_PAUSE_MODE_UNLOAD_FILAMENT:
+          return PSTR(MSG_FILAMENTUNLOAD);
+        default: break;
+      }
+      return PSTR(MSG_FILAMENTCHANGE);
+    }
+
+    void _lcd_temp_menu_filament_op(const AdvancedPauseMode mode, const int8_t extruder) {
+      _change_filament_temp_mode = mode;
+      _change_filament_temp_extruder = extruder;
+      START_MENU();
+      if (LCD_HEIGHT >= 4) STATIC_ITEM_P(change_filament_header(mode), true, true);
+      MENU_BACK(MSG_FILAMENTCHANGE);
+      MENU_ITEM(submenu, MSG_PREHEAT_1, _lcd_change_filament_temp_1_menu);
+      MENU_ITEM(submenu, MSG_PREHEAT_2, _lcd_change_filament_temp_2_menu);
+      END_MENU();
+    }
+    void lcd_temp_menu_e0_filament_change()  { _lcd_temp_menu_filament_op(ADVANCED_PAUSE_MODE_PAUSE_PRINT, 0); }
+    void lcd_temp_menu_e0_filament_load()    { _lcd_temp_menu_filament_op(ADVANCED_PAUSE_MODE_LOAD_FILAMENT, 0); }
+    void lcd_temp_menu_e0_filament_unload()  { _lcd_temp_menu_filament_op(ADVANCED_PAUSE_MODE_UNLOAD_FILAMENT, 0); }
+    #if E_STEPPERS > 1
+      void lcd_temp_menu_e1_filament_change()  { _lcd_temp_menu_filament_op(ADVANCED_PAUSE_MODE_PAUSE_PRINT, 1); }
+      void lcd_temp_menu_e1_filament_load()    { _lcd_temp_menu_filament_op(ADVANCED_PAUSE_MODE_LOAD_FILAMENT, 1); }
+      void lcd_temp_menu_e1_filament_unload()  { _lcd_temp_menu_filament_op(ADVANCED_PAUSE_MODE_UNLOAD_FILAMENT, 1); }
+      #if ENABLED(FILAMENT_UNLOAD_ALL_EXTRUDERS)
+        void lcd_unload_filament_all_temp_menu() { _lcd_temp_menu_filament_op(ADVANCED_PAUSE_MODE_UNLOAD_FILAMENT, -1); }
+      #endif
+      #if E_STEPPERS > 2
+        void lcd_temp_menu_e2_filament_change()  { _lcd_temp_menu_filament_op(ADVANCED_PAUSE_MODE_PAUSE_PRINT, 2); }
+        void lcd_temp_menu_e2_filament_load()    { _lcd_temp_menu_filament_op(ADVANCED_PAUSE_MODE_LOAD_FILAMENT, 2); }
+        void lcd_temp_menu_e2_filament_unload()  { _lcd_temp_menu_filament_op(ADVANCED_PAUSE_MODE_UNLOAD_FILAMENT, 2); }
+        #if E_STEPPERS > 3
+          void lcd_temp_menu_e3_filament_change()  { _lcd_temp_menu_filament_op(ADVANCED_PAUSE_MODE_PAUSE_PRINT, 3); }
+          void lcd_temp_menu_e3_filament_load()    { _lcd_temp_menu_filament_op(ADVANCED_PAUSE_MODE_LOAD_FILAMENT, 3); }
+          void lcd_temp_menu_e3_filament_unload()  { _lcd_temp_menu_filament_op(ADVANCED_PAUSE_MODE_UNLOAD_FILAMENT, 3); }
+          #if E_STEPPERS > 4
+            void lcd_temp_menu_e4_filament_change()  { _lcd_temp_menu_filament_op(ADVANCED_PAUSE_MODE_PAUSE_PRINT, 4); }
+            void lcd_temp_menu_e4_filament_load()    { _lcd_temp_menu_filament_op(ADVANCED_PAUSE_MODE_LOAD_FILAMENT, 4); }
+            void lcd_temp_menu_e4_filament_unload()  { _lcd_temp_menu_filament_op(ADVANCED_PAUSE_MODE_UNLOAD_FILAMENT, 4); }
+          #endif // E_STEPPERS > 4
+        #endif // E_STEPPERS > 3
+      #endif // E_STEPPERS > 2
+    #endif // E_STEPPERS > 1
+
+    /**
+     *
+     * "Change Filament" submenu
+     *
+     */
+    #if E_STEPPERS > 1 || ENABLED(FILAMENT_LOAD_UNLOAD_GCODES)
+      void lcd_change_filament_menu() {
+        START_MENU();
+        MENU_BACK(MSG_PREPARE);
+
+        // Change filament
+        #if E_STEPPERS == 1
+          PGM_P msg0 = PSTR(MSG_FILAMENTCHANGE);
+          if (thermalManager.targetTooColdToExtrude(active_extruder))
+            MENU_ITEM_P(submenu, msg0, lcd_temp_menu_e0_filament_change);
+          else
+            MENU_ITEM_P(gcode, msg0, PSTR("M600 B0"));
+        #else
+          PGM_P msg0 = PSTR(MSG_FILAMENTCHANGE " " MSG_E1);
+          PGM_P msg1 = PSTR(MSG_FILAMENTCHANGE " " MSG_E2);
+          if (thermalManager.targetTooColdToExtrude(0))
+            MENU_ITEM_P(submenu, msg0, lcd_temp_menu_e0_filament_change);
+          else
+            MENU_ITEM_P(gcode, msg0, PSTR("M600 B0 T0"));
+          if (thermalManager.targetTooColdToExtrude(1))
+            MENU_ITEM_P(submenu, msg1, lcd_temp_menu_e1_filament_change);
+          else
+            MENU_ITEM_P(gcode, msg1, PSTR("M600 B0 T1"));
+          #if E_STEPPERS > 2
+            PGM_P msg2 = PSTR(MSG_FILAMENTCHANGE " " MSG_E3);
+            if (thermalManager.targetTooColdToExtrude(2))
+              MENU_ITEM_P(submenu, msg2, lcd_temp_menu_e2_filament_change);
+            else
+              MENU_ITEM_P(gcode, msg2, PSTR("M600 B0 T2"));
+            #if E_STEPPERS > 3
+              PGM_P msg3 = PSTR(MSG_FILAMENTCHANGE " " MSG_E4);
+              if (thermalManager.targetTooColdToExtrude(3))
+                MENU_ITEM_P(submenu, msg3, lcd_temp_menu_e3_filament_change);
+              else
+                MENU_ITEM_P(gcode, msg3, PSTR("M600 B0 T3"));
+              #if E_STEPPERS > 4
+                PGM_P msg4 = PSTR(MSG_FILAMENTCHANGE " " MSG_E5);
+                if (thermalManager.targetTooColdToExtrude(4))
+                  MENU_ITEM_P(submenu, msg4, lcd_temp_menu_e4_filament_change);
+                else
+                  MENU_ITEM_P(gcode, msg4, PSTR("M600 B0 T4"));
+              #endif // E_STEPPERS > 4
+            #endif // E_STEPPERS > 3
+          #endif // E_STEPPERS > 2
+        #endif // E_STEPPERS == 1
+
+        #if ENABLED(FILAMENT_LOAD_UNLOAD_GCODES)
+          if (!planner.movesplanned() && !IS_SD_FILE_OPEN) {
+            // Load filament
+            #if E_STEPPERS == 1
+              PGM_P msg0 = PSTR(MSG_FILAMENTLOAD);
+              if (thermalManager.targetTooColdToExtrude(active_extruder))
+                MENU_ITEM_P(submenu, msg0, lcd_temp_menu_e0_filament_load);
+              else
+                MENU_ITEM_P(gcode, msg0, PSTR("M701"));
+            #else
+              PGM_P msg0 = PSTR(MSG_FILAMENTLOAD " " MSG_E1);
+              PGM_P msg1 = PSTR(MSG_FILAMENTLOAD " " MSG_E2);
+              if (thermalManager.targetTooColdToExtrude(0))
+                MENU_ITEM_P(submenu, msg0, lcd_temp_menu_e0_filament_load);
+              else
+                MENU_ITEM_P(gcode, msg0, PSTR("M701 T0"));
+              if (thermalManager.targetTooColdToExtrude(1))
+                MENU_ITEM_P(submenu, msg1, lcd_temp_menu_e1_filament_load);
+              else
+                MENU_ITEM_P(gcode, msg1, PSTR("M701 T1"));
+              #if E_STEPPERS > 2
+                PGM_P msg2 = PSTR(MSG_FILAMENTLOAD " " MSG_E3);
+                if (thermalManager.targetTooColdToExtrude(2))
+                  MENU_ITEM_P(submenu, msg2, lcd_temp_menu_e2_filament_load);
+                else
+                  MENU_ITEM_P(gcode, msg2, PSTR("M701 T2"));
+                #if E_STEPPERS > 3
+                  PGM_P msg3 = PSTR(MSG_FILAMENTLOAD " " MSG_E4);
+                  if (thermalManager.targetTooColdToExtrude(3))
+                    MENU_ITEM_P(submenu, msg3, lcd_temp_menu_e3_filament_load);
+                  else
+                    MENU_ITEM_P(gcode, msg3, PSTR("M701 T3"));
+                  #if E_STEPPERS > 4
+                    PGM_P msg4 = PSTR(MSG_FILAMENTLOAD " " MSG_E5);
+                    if (thermalManager.targetTooColdToExtrude(4))
+                      MENU_ITEM_P(submenu, msg4, lcd_temp_menu_e4_filament_load);
+                    else
+                      MENU_ITEM_P(gcode, msg4, PSTR("M701 T4"));
+                  #endif // E_STEPPERS > 4
+                #endif // E_STEPPERS > 3
+              #endif // E_STEPPERS > 2
+            #endif // E_STEPPERS == 1
+
+            // Unload filament
+            #if E_STEPPERS == 1
+              if (!thermalManager.targetTooColdToExtrude(active_extruder))
+                MENU_ITEM(gcode, MSG_FILAMENTUNLOAD, PSTR("M702"));
+              else
+                MENU_ITEM(submenu, MSG_FILAMENTUNLOAD, lcd_temp_menu_e0_filament_unload);
+            #else
+              #if ENABLED(FILAMENT_UNLOAD_ALL_EXTRUDERS)
+                if (!thermalManager.targetTooColdToExtrude(0)
+                  #if E_STEPPERS > 1
+                    && !thermalManager.targetTooColdToExtrude(1)
+                    #if E_STEPPERS > 2
+                      && !thermalManager.targetTooColdToExtrude(2)
+                      #if E_STEPPERS > 3
+                        && !thermalManager.targetTooColdToExtrude(3)
+                        #if E_STEPPERS > 4
+                          && !thermalManager.targetTooColdToExtrude(4)
+                        #endif // E_STEPPERS > 4
+                      #endif // E_STEPPERS > 3
+                    #endif // E_STEPPERS > 2
+                  #endif // E_STEPPERS > 1
+                )
+                  MENU_ITEM(gcode, MSG_FILAMENTUNLOAD_ALL, PSTR("M702"));
+              else
+                MENU_ITEM(submenu, MSG_FILAMENTUNLOAD_ALL, lcd_unload_filament_all_temp_menu);
+              #endif
+              if (!thermalManager.targetTooColdToExtrude(0))
+                MENU_ITEM(gcode, MSG_FILAMENTUNLOAD " " MSG_E1, PSTR("M702 T0"));
+              else
+                MENU_ITEM(submenu, MSG_FILAMENTUNLOAD " " MSG_E1, lcd_temp_menu_e0_filament_unload);
+              if (!thermalManager.targetTooColdToExtrude(1))
+                MENU_ITEM(gcode, MSG_FILAMENTUNLOAD " " MSG_E2, PSTR("M702 T1"));
+              else
+                MENU_ITEM(submenu, MSG_FILAMENTUNLOAD " " MSG_E2, lcd_temp_menu_e1_filament_unload);
+              #if E_STEPPERS > 2
+                if (!thermalManager.targetTooColdToExtrude(2))
+                  MENU_ITEM(gcode, MSG_FILAMENTUNLOAD " " MSG_E3, PSTR("M702 T2"));
+                else
+                  MENU_ITEM(submenu, MSG_FILAMENTUNLOAD " " MSG_E3, lcd_temp_menu_e2_filament_unload);
+                #if E_STEPPERS > 3
+                  if (!thermalManager.targetTooColdToExtrude(3))
+                    MENU_ITEM(gcode, MSG_FILAMENTUNLOAD " " MSG_E4, PSTR("M702 T3"));
+                  else
+                    MENU_ITEM(submenu, MSG_FILAMENTUNLOAD " " MSG_E4, lcd_temp_menu_e3_filament_unload);
+                  #if E_STEPPERS > 4
+                    if (!thermalManager.targetTooColdToExtrude(4))
+                      MENU_ITEM(gcode, MSG_FILAMENTUNLOAD " " MSG_E5, PSTR("M702 T4"));
+                    else
+                      MENU_ITEM(submenu, MSG_FILAMENTUNLOAD " " MSG_E5, lcd_temp_menu_e4_filament_unload);
+                  #endif // E_STEPPERS > 4
+                #endif // E_STEPPERS > 3
+              #endif // E_STEPPERS > 2
+            #endif // E_STEPPERS == 1
+          }
+        #endif
+
+        END_MENU();
+      }
+    #endif
+
+    static AdvancedPauseMode advanced_pause_mode = ADVANCED_PAUSE_MODE_PAUSE_PRINT;
+    static uint8_t hotend_status_extruder = 0;
+
+    static const char* advanced_pause_header() {
+      switch (advanced_pause_mode) {
+        case ADVANCED_PAUSE_MODE_LOAD_FILAMENT:
+          return PSTR(MSG_FILAMENT_CHANGE_HEADER_LOAD);
+        case ADVANCED_PAUSE_MODE_UNLOAD_FILAMENT:
+          return PSTR(MSG_FILAMENT_CHANGE_HEADER_UNLOAD);
+        default: break;
+      }
+      return PSTR(MSG_FILAMENT_CHANGE_HEADER_PAUSE);
+    }
+
     // Portions from STATIC_ITEM...
     #define HOTEND_STATUS_ITEM() do { \
       if (_menuLineNr == _thisItemNr) { \
         if (lcdDrawUpdate) { \
           lcd_implementation_drawmenu_static(_lcdLineNr, PSTR(MSG_FILAMENT_CHANGE_NOZZLE), false, true); \
-          lcd_implementation_hotend_status(_lcdLineNr); \
+          lcd_implementation_hotend_status(_lcdLineNr, hotend_status_extruder); \
         } \
         if (_skipStatic && encoderLine <= _thisItemNr) { \
           encoderPosition += ENCODER_STEPS_PER_MENU_ITEM; \
       ++_thisItemNr; \
     }while(0)
 
-    void lcd_advanced_pause_toocold_menu() {
-      START_MENU();
-      STATIC_ITEM(MSG_HEATING_FAILED_LCD, true, true);
-      STATIC_ITEM(MSG_FILAMENT_CHANGE_MINTEMP STRINGIFY(EXTRUDE_MINTEMP) ".", false, false);
-      MENU_BACK(MSG_BACK);
-      #if LCD_HEIGHT > 4
-        STATIC_ITEM(" ");
-      #endif
-      HOTEND_STATUS_ITEM();
-      END_MENU();
-    }
-
     void lcd_advanced_pause_resume_print() {
       advanced_pause_menu_response = ADVANCED_PAUSE_RESPONSE_RESUME_PRINT;
     }
         STATIC_ITEM(MSG_FILAMENT_CHANGE_OPTION_HEADER, true, false);
       #endif
       MENU_ITEM(function, MSG_FILAMENT_CHANGE_OPTION_RESUME, lcd_advanced_pause_resume_print);
-      MENU_ITEM(function, MSG_FILAMENT_CHANGE_OPTION_EXTRUDE, lcd_advanced_pause_extrude_more);
+      MENU_ITEM(function, MSG_FILAMENT_CHANGE_OPTION_PURGE, lcd_advanced_pause_extrude_more);
       END_MENU();
     }
 
     void lcd_advanced_pause_init_message() {
       START_SCREEN();
-      STATIC_ITEM(MSG_FILAMENT_CHANGE_HEADER, true, true);
+      STATIC_ITEM_P(advanced_pause_header(), true, true);
       STATIC_ITEM(MSG_FILAMENT_CHANGE_INIT_1);
       #ifdef MSG_FILAMENT_CHANGE_INIT_2
         STATIC_ITEM(MSG_FILAMENT_CHANGE_INIT_2);
 
     void lcd_advanced_pause_unload_message() {
       START_SCREEN();
-      STATIC_ITEM(MSG_FILAMENT_CHANGE_HEADER, true, true);
+      STATIC_ITEM_P(advanced_pause_header(), true, true);
       STATIC_ITEM(MSG_FILAMENT_CHANGE_UNLOAD_1);
       #ifdef MSG_FILAMENT_CHANGE_UNLOAD_2
         STATIC_ITEM(MSG_FILAMENT_CHANGE_UNLOAD_2);
 
     void lcd_advanced_pause_wait_for_nozzles_to_heat() {
       START_SCREEN();
-      STATIC_ITEM(MSG_FILAMENT_CHANGE_HEADER, true, true);
+      STATIC_ITEM_P(advanced_pause_header(), true, true);
       STATIC_ITEM(MSG_FILAMENT_CHANGE_HEATING_1);
       #ifdef MSG_FILAMENT_CHANGE_HEATING_2
         STATIC_ITEM(MSG_FILAMENT_CHANGE_HEATING_2);
 
     void lcd_advanced_pause_heat_nozzle() {
       START_SCREEN();
-      STATIC_ITEM(MSG_FILAMENT_CHANGE_HEADER, true, true);
+      STATIC_ITEM_P(advanced_pause_header(), true, true);
       STATIC_ITEM(MSG_FILAMENT_CHANGE_HEAT_1);
       #ifdef MSG_FILAMENT_CHANGE_INSERT_2
         STATIC_ITEM(MSG_FILAMENT_CHANGE_HEAT_2);
 
     void lcd_advanced_pause_insert_message() {
       START_SCREEN();
-      STATIC_ITEM(MSG_FILAMENT_CHANGE_HEADER, true, true);
+      STATIC_ITEM_P(advanced_pause_header(), true, true);
       STATIC_ITEM(MSG_FILAMENT_CHANGE_INSERT_1);
       #ifdef MSG_FILAMENT_CHANGE_INSERT_2
         STATIC_ITEM(MSG_FILAMENT_CHANGE_INSERT_2);
 
     void lcd_advanced_pause_load_message() {
       START_SCREEN();
-      STATIC_ITEM(MSG_FILAMENT_CHANGE_HEADER, true, true);
+      STATIC_ITEM_P(advanced_pause_header(), true, true);
       STATIC_ITEM(MSG_FILAMENT_CHANGE_LOAD_1);
       #ifdef MSG_FILAMENT_CHANGE_LOAD_2
         STATIC_ITEM(MSG_FILAMENT_CHANGE_LOAD_2);
       END_SCREEN();
     }
 
-    void lcd_advanced_pause_extrude_message() {
+    void lcd_advanced_pause_purge_message() {
       START_SCREEN();
-      STATIC_ITEM(MSG_FILAMENT_CHANGE_HEADER, true, true);
-      STATIC_ITEM(MSG_FILAMENT_CHANGE_EXTRUDE_1);
-      #ifdef MSG_FILAMENT_CHANGE_EXTRUDE_2
-        STATIC_ITEM(MSG_FILAMENT_CHANGE_EXTRUDE_2);
+      STATIC_ITEM_P(advanced_pause_header(), true, true);
+      STATIC_ITEM(MSG_FILAMENT_CHANGE_PURGE_1);
+      #ifdef MSG_FILAMENT_CHANGE_PURGE_2
+        STATIC_ITEM(MSG_FILAMENT_CHANGE_PURGE_2);
         #define __FC_LINES_G 3
       #else
         #define __FC_LINES_G 2
       #endif
-      #ifdef MSG_FILAMENT_CHANGE_EXTRUDE_3
-        STATIC_ITEM(MSG_FILAMENT_CHANGE_EXTRUDE_3);
+      #ifdef MSG_FILAMENT_CHANGE_PURGE_3
+        STATIC_ITEM(MSG_FILAMENT_CHANGE_PURGE_3);
         #define _FC_LINES_G (__FC_LINES_G + 1)
       #else
         #define _FC_LINES_G __FC_LINES_G
 
     void lcd_advanced_pause_resume_message() {
       START_SCREEN();
-      STATIC_ITEM(MSG_FILAMENT_CHANGE_HEADER, true, true);
+      STATIC_ITEM_P(advanced_pause_header(), true, true);
       STATIC_ITEM(MSG_FILAMENT_CHANGE_RESUME_1);
       #ifdef MSG_FILAMENT_CHANGE_RESUME_2
         STATIC_ITEM(MSG_FILAMENT_CHANGE_RESUME_2);
       END_SCREEN();
     }
 
-    void lcd_advanced_pause_show_message(const AdvancedPauseMessage message) {
+    FORCE_INLINE screenFunc_t ap_message_screen(const AdvancedPauseMessage message) {
       switch (message) {
-        case ADVANCED_PAUSE_MESSAGE_INIT:
-          defer_return_to_status = true;
-          lcd_goto_screen(lcd_advanced_pause_init_message);
-          break;
-        case ADVANCED_PAUSE_MESSAGE_UNLOAD:
-          defer_return_to_status = true;
-          lcd_goto_screen(lcd_advanced_pause_unload_message);
-          break;
-        case ADVANCED_PAUSE_MESSAGE_INSERT:
-          defer_return_to_status = true;
-          lcd_goto_screen(lcd_advanced_pause_insert_message);
-          break;
-        case ADVANCED_PAUSE_MESSAGE_LOAD:
-          defer_return_to_status = true;
-          lcd_goto_screen(lcd_advanced_pause_load_message);
-          break;
-        case ADVANCED_PAUSE_MESSAGE_EXTRUDE:
-          defer_return_to_status = true;
-          lcd_goto_screen(lcd_advanced_pause_extrude_message);
-          break;
-        case ADVANCED_PAUSE_MESSAGE_CLICK_TO_HEAT_NOZZLE:
-          defer_return_to_status = true;
-          lcd_goto_screen(lcd_advanced_pause_heat_nozzle);
-          break;
-        case ADVANCED_PAUSE_MESSAGE_WAIT_FOR_NOZZLES_TO_HEAT:
-          defer_return_to_status = true;
-          lcd_goto_screen(lcd_advanced_pause_wait_for_nozzles_to_heat);
-          break;
-        case ADVANCED_PAUSE_MESSAGE_OPTION:
-          defer_return_to_status = true;
-          advanced_pause_menu_response = ADVANCED_PAUSE_RESPONSE_WAIT_FOR;
-          lcd_goto_screen(lcd_advanced_pause_option_menu);
-          break;
-        case ADVANCED_PAUSE_MESSAGE_RESUME:
-          defer_return_to_status = true;
-          lcd_goto_screen(lcd_advanced_pause_resume_message);
-          break;
+        case ADVANCED_PAUSE_MESSAGE_INIT: return lcd_advanced_pause_init_message;
+        case ADVANCED_PAUSE_MESSAGE_UNLOAD: return lcd_advanced_pause_unload_message;
+        case ADVANCED_PAUSE_MESSAGE_INSERT: return lcd_advanced_pause_insert_message;
+        case ADVANCED_PAUSE_MESSAGE_LOAD: return lcd_advanced_pause_load_message;
+        case ADVANCED_PAUSE_MESSAGE_PURGE: return lcd_advanced_pause_purge_message;
+        case ADVANCED_PAUSE_MESSAGE_RESUME: return lcd_advanced_pause_resume_message;
+        case ADVANCED_PAUSE_MESSAGE_CLICK_TO_HEAT_NOZZLE: return lcd_advanced_pause_heat_nozzle;
+        case ADVANCED_PAUSE_MESSAGE_WAIT_FOR_NOZZLES_TO_HEAT: return lcd_advanced_pause_wait_for_nozzles_to_heat;
+        case ADVANCED_PAUSE_MESSAGE_OPTION: advanced_pause_menu_response = ADVANCED_PAUSE_RESPONSE_WAIT_FOR;
+                                            return lcd_advanced_pause_option_menu;
         case ADVANCED_PAUSE_MESSAGE_STATUS:
-          lcd_return_to_status();
-          break;
+        default: break;
       }
+      return NULL;
+    }
+
+    void lcd_advanced_pause_show_message(
+      const AdvancedPauseMessage message,
+      const AdvancedPauseMode mode/*=ADVANCED_PAUSE_MODE_PAUSE_PRINT*/,
+      const uint8_t extruder/*=active_extruder*/
+    ) {
+      advanced_pause_mode = mode;
+      hotend_status_extruder = extruder;
+      const screenFunc_t next_screen = ap_message_screen(message);
+      if (next_screen) {
+        defer_return_to_status = true;
+        lcd_goto_screen(next_screen);
+      }
+      else
+        lcd_return_to_status();
     }
 
   #endif // ADVANCED_PAUSE_FEATURE
     if (UBL_CONDITION && LCD_CLICKED) {
       if (!wait_for_unclick) {           // If not waiting for a debounce release:
         wait_for_unclick = true;         //  Set debounce flag to ignore continous clicks
-        lcd_clicked = !wait_for_user && !no_reentry; // Flag the click if allowed
+        lcd_clicked = !wait_for_user && !no_reentry; //  Keep the click if not waiting for a user-click
         wait_for_user = false;           //  Any click clears wait for user
         lcd_quick_feedback();            //  Always make a click sound
       }

Marlin/src/lcd/ultralcd.h

 
   #include "../Marlin.h"
 
+  #if ENABLED(ADVANCED_PAUSE_FEATURE)
+    #include "../feature/pause.h"
+  #endif
+
   #if ENABLED(AUTO_BED_LEVELING_UBL) || ENABLED(G26_MESH_VALIDATION)
     extern bool lcd_external_control;
   #else
     void lcd_completion_feedback(const bool good=true);
 
     #if ENABLED(ADVANCED_PAUSE_FEATURE)
-      enum AdvancedPauseMessage {
-        ADVANCED_PAUSE_MESSAGE_INIT,
-        ADVANCED_PAUSE_MESSAGE_UNLOAD,
-        ADVANCED_PAUSE_MESSAGE_INSERT,
-        ADVANCED_PAUSE_MESSAGE_LOAD,
-        ADVANCED_PAUSE_MESSAGE_EXTRUDE,
-        ADVANCED_PAUSE_MESSAGE_OPTION,
-        ADVANCED_PAUSE_MESSAGE_RESUME,
-        ADVANCED_PAUSE_MESSAGE_STATUS,
-        ADVANCED_PAUSE_MESSAGE_CLICK_TO_HEAT_NOZZLE,
-        ADVANCED_PAUSE_MESSAGE_WAIT_FOR_NOZZLES_TO_HEAT
-      };
-      void lcd_advanced_pause_show_message(const AdvancedPauseMessage message);
-    #endif
+      extern uint8_t active_extruder;
+      void lcd_advanced_pause_show_message(const AdvancedPauseMessage message,
+                                           const AdvancedPauseMode mode=ADVANCED_PAUSE_MODE_PAUSE_PRINT,
+                                           const uint8_t extruder=active_extruder);
+    #endif // ADVANCED_PAUSE_FEATURE
 
     #if ENABLED(G26_MESH_VALIDATION)
       void lcd_chirp();

Marlin/src/lcd/ultralcd_impl_DOGM.h

 
   #if ENABLED(ADVANCED_PAUSE_FEATURE)
 
-    static void lcd_implementation_hotend_status(const uint8_t row) {
+    static void lcd_implementation_hotend_status(const uint8_t row, const uint8_t extruder=active_extruder) {
       row_y1 = row * row_height + 1;
       row_y2 = row_y1 + row_height - 1;
 
 
       u8g.setPrintPos(LCD_PIXEL_WIDTH - 11 * (DOG_CHAR_WIDTH), row_y2);
       lcd_print('E');
-      lcd_print((char)('1' + active_extruder));
+      lcd_print((char)('1' + extruder));
       lcd_print(' ');
-      lcd_print(itostr3(thermalManager.degHotend(active_extruder)));
+      lcd_print(itostr3(thermalManager.degHotend(extruder)));
       lcd_print('/');
 
-      if (lcd_blink() || !thermalManager.is_heater_idle(active_extruder))
-        lcd_print(itostr3(thermalManager.degTargetHotend(active_extruder)));
+      if (lcd_blink() || !thermalManager.is_heater_idle(extruder))
+        lcd_print(itostr3(thermalManager.degTargetHotend(extruder)));
     }
 
   #endif // ADVANCED_PAUSE_FEATURE

Marlin/src/lcd/ultralcd_impl_HD44780.h

 
       // If the first line has two extruder temps,
       // show more temperatures on the next line
-      // instead of 
 
       #if HOTENDS > 2 || (HOTENDS > 1 && TEMP_SENSOR_BED)
 
 
   #if ENABLED(ADVANCED_PAUSE_FEATURE)
 
-    static void lcd_implementation_hotend_status(const uint8_t row) {
+    static void lcd_implementation_hotend_status(const uint8_t row, const uint8_t extruder=active_extruder) {
       if (row < LCD_HEIGHT) {
         lcd.setCursor(LCD_WIDTH - 9, row);
-        _draw_heater_status(active_extruder, LCD_STR_THERMOMETER[0], lcd_blink());
+        _draw_heater_status(extruder, LCD_STR_THERMOMETER[0], lcd_blink());
       }
     }
 

Marlin/src/libs/nozzle.cpp

 
 #if ENABLED(NOZZLE_PARK_FEATURE)
 
-  void Nozzle::park(const uint8_t &z_action, const point_t &park /*= NOZZLE_PARK_POINT*/) {
+  void Nozzle::park(const uint8_t z_action, const point_t &park /*= NOZZLE_PARK_POINT*/) {
     const float fr_xy = NOZZLE_PARK_XY_FEEDRATE;
     const float fr_z = NOZZLE_PARK_Z_FEEDRATE;
 

Marlin/src/libs/nozzle.h

 
   #if ENABLED(NOZZLE_PARK_FEATURE)
 
-    static void park(const uint8_t &z_action, const point_t &park = NOZZLE_PARK_POINT) _Os;
+    static void park(const uint8_t z_action, const point_t &park=NOZZLE_PARK_POINT) _Os;
 
   #endif
 };

Marlin/src/module/configuration_store.cpp

  *
  */
 
-#define EEPROM_VERSION "V47"
+#define EEPROM_VERSION "V48"
 
 // Change EEPROM version if these are changed:
 #define EEPROM_OFFSET 100
 
 /**
- * V47 EEPROM Layout:
+ * V48 EEPROM Layout:
  *
  *  100  Version                                    (char x4)
  *  104  EEPROM CRC16                               (uint16_t)
  *
  * Volumetric Extrusion:                            21 bytes
  *  539  M200 D    parser.volumetric_enabled        (bool)
- *  540  M200 T D  planner.filament_size            (float x5) (T0..3)
+ *  540  M200 T D  planner.filament_size            (float x5) (T0..4)
  *
  * HAS_TRINAMIC:                                    22 bytes
  *  560  M906 X    Stepper X current                (uint16_t)
  *  578  M906 E3   Stepper E3 current               (uint16_t)
  *  580  M906 E4   Stepper E4 current               (uint16_t)
  *
- * SENSORLESS HOMING                                4 bytes
+ * SENSORLESS_HOMING:                               4 bytes
  *  582  M914 X    Stepper X and X2 threshold       (int16_t)
  *  584  M914 Y    Stepper Y and Y2 threshold       (int16_t)
  *
  *  598  M907 Z    Stepper Z current                (uint32_t)
  *  602  M907 E    Stepper E current                (uint32_t)
  *
- * CNC_COORDINATE_SYSTEMS                           108 bytes
+ * CNC_COORDINATE_SYSTEMS:                          108 bytes
  *  606  G54-G59.3 coordinate_system                (float x 27)
  *
  * SKEW_CORRECTION:                                 12 bytes
  *  718  M852 J    planner.xz_skew_factor           (float)
  *  722  M852 K    planner.yz_skew_factor           (float)
  *
- *  726                                   Minimum end-point
- * 2255 (726 + 208 + 36 + 9 + 288 + 988)  Maximum end-point
+ * ADVANCED_PAUSE_FEATURE:                          40 bytes
+ *  726  M603 T U  filament_change_unload_length    (float x 5) (T0..4)
+ *  746  M603 T L  filament_change_load_length      (float x 5) (T0..4)
+ *
+ *  766                                   Minimum end-point
+ * 2295 (766 + 208 + 36 + 9 + 288 + 988)  Maximum end-point
  *
  * ========================================================================
  * meshes_begin (between max and min end-point, directly above)
       for (uint8_t q = 3; q--;) EEPROM_WRITE(dummy);
     #endif
 
+    //
+    // Advanced Pause filament load & unload lengths
+    //
+    #if ENABLED(ADVANCED_PAUSE_FEATURE)
+      for (uint8_t q = 0; q < MAX_EXTRUDERS; q++) {
+        if (q < COUNT(filament_change_unload_length)) dummy = filament_change_unload_length[q];
+        EEPROM_WRITE(dummy);
+      }
+      for (uint8_t q = 0; q < MAX_EXTRUDERS; q++) {
+        if (q < COUNT(filament_change_load_length)) dummy = filament_change_load_length[q];
+        EEPROM_WRITE(dummy);
+      }
+    #else
+      dummy = 0.0f;
+      for (uint8_t q = MAX_EXTRUDERS * 2; q--;) EEPROM_WRITE(dummy);
+    #endif
+
     if (!eeprom_error) {
       #if ENABLED(EEPROM_CHITCHAT)
         const int eeprom_size = eeprom_index;
         for (uint8_t q = 3; q--;) EEPROM_READ(dummy);
       #endif
 
+      //
+      // Advanced Pause filament load & unload lengths
+      //
+
+      #if ENABLED(ADVANCED_PAUSE_FEATURE)
+        for (uint8_t q = 0; q < MAX_EXTRUDERS; q++) {
+          EEPROM_READ(dummy);
+          if (q < COUNT(filament_change_unload_length)) filament_change_unload_length[q] = dummy;
+        }
+        for (uint8_t q = 0; q < MAX_EXTRUDERS; q++) {
+          EEPROM_READ(dummy);
+          if (q < COUNT(filament_change_load_length)) filament_change_load_length[q] = dummy;
+        }
+      #else
+        for (uint8_t q = MAX_EXTRUDERS * 2; q--;) EEPROM_READ(dummy);
+      #endif
+
       if (working_crc == stored_crc) {
         postprocess();
         #if ENABLED(EEPROM_CHITCHAT)
     #endif
   #endif
 
+  #if ENABLED(ADVANCED_PAUSE_FEATURE)
+    for (uint8_t e = 0; e < E_STEPPERS; e++) {
+      filament_change_unload_length[e] = FILAMENT_CHANGE_UNLOAD_LENGTH;
+      filament_change_load_length[e] = FILAMENT_CHANGE_LOAD_LENGTH;
+    }
+  #endif
+
   postprocess();
 
   #if ENABLED(EEPROM_CHITCHAT)
       }
     #endif
 
-    #if ENABLED(MESH_BED_LEVELING)
+    /**
+     * Bed Leveling
+     */
+    #if HAS_LEVELING
 
-      if (!forReplay) {
-        CONFIG_ECHO_START;
-        SERIAL_ECHOLNPGM("Mesh Bed Leveling:");
-      }
-      CONFIG_ECHO_START;
-      SERIAL_ECHOPAIR("  M420 S", leveling_is_valid() ? 1 : 0);
-      #if ENABLED(ENABLE_LEVELING_FADE_HEIGHT)
-        SERIAL_ECHOPAIR(" Z", LINEAR_UNIT(planner.z_fade_height));
-      #endif
-      SERIAL_EOL();
-      for (uint8_t py = 0; py < GRID_MAX_POINTS_Y; py++) {
-        for (uint8_t px = 0; px < GRID_MAX_POINTS_X; px++) {
+      #if ENABLED(MESH_BED_LEVELING)
+
+        if (!forReplay) {
           CONFIG_ECHO_START;
-          SERIAL_ECHOPAIR("  G29 S3 X", (int)px + 1);
-          SERIAL_ECHOPAIR(" Y", (int)py + 1);
-          SERIAL_ECHOPGM(" Z");
-          SERIAL_PROTOCOL_F(LINEAR_UNIT(mbl.z_values[px][py]), 5);
-          SERIAL_EOL();
+          SERIAL_ECHOLNPGM("Mesh Bed Leveling:");
         }
-      }
 
-    #elif ENABLED(AUTO_BED_LEVELING_UBL)
+      #elif ENABLED(AUTO_BED_LEVELING_UBL)
+
+        if (!forReplay) {
+          CONFIG_ECHO_START;
+          ubl.echo_name();
+          SERIAL_ECHOLNPGM(":");
+        }
+
+      #elif HAS_ABL
+
+        if (!forReplay) {
+          CONFIG_ECHO_START;
+          SERIAL_ECHOLNPGM("Auto Bed Leveling:");
+        }
+
+      #endif
 
-      if (!forReplay) {
-        CONFIG_ECHO_START;
-        ubl.echo_name();
-        SERIAL_ECHOLNPGM(":");
-      }
       CONFIG_ECHO_START;
       SERIAL_ECHOPAIR("  M420 S", planner.leveling_active ? 1 : 0);
       #if ENABLED(ENABLE_LEVELING_FADE_HEIGHT)
       #endif
       SERIAL_EOL();
 
-      if (!forReplay) {
-        SERIAL_EOL();
-        ubl.report_state();
+      #if ENABLED(MESH_BED_LEVELING)
 
-        SERIAL_ECHOLNPAIR("\nActive Mesh Slot: ", ubl.storage_slot);
-        SERIAL_ECHOPAIR("EEPROM can hold ", calc_num_meshes());
-        SERIAL_ECHOLNPGM(" meshes.\n");
-      }
+        for (uint8_t py = 0; py < GRID_MAX_POINTS_Y; py++) {
+          for (uint8_t px = 0; px < GRID_MAX_POINTS_X; px++) {
+            CONFIG_ECHO_START;
+            SERIAL_ECHOPAIR("  G29 S3 X", (int)px + 1);
+            SERIAL_ECHOPAIR(" Y", (int)py + 1);
+            SERIAL_ECHOPGM(" Z");
+            SERIAL_PROTOCOL_F(LINEAR_UNIT(mbl.z_values[px][py]), 5);
+            SERIAL_EOL();
+          }
+        }
 
-    #elif HAS_ABL
+      #elif ENABLED(AUTO_BED_LEVELING_UBL)
+
+        if (!forReplay) {
+          SERIAL_EOL();
+          ubl.report_state();
+          SERIAL_ECHOLNPAIR("\nActive Mesh Slot: ", ubl.storage_slot);
+          SERIAL_ECHOPAIR("EEPROM can hold ", calc_num_meshes());
+          SERIAL_ECHOLNPGM(" meshes.\n");
+        }
 
-      if (!forReplay) {
-        CONFIG_ECHO_START;
-        SERIAL_ECHOLNPGM("Auto Bed Leveling:");
-      }
-      CONFIG_ECHO_START;
-      SERIAL_ECHOPAIR("  M420 S", planner.leveling_active ? 1 : 0);
-      #if ENABLED(ENABLE_LEVELING_FADE_HEIGHT)
-        SERIAL_ECHOPAIR(" Z", LINEAR_UNIT(planner.z_fade_height));
       #endif
-      SERIAL_EOL();
 
-    #endif
+    #endif // HAS_LEVELING
 
     #if ENABLED(DELTA)
       if (!forReplay) {
     /**
      * TMC2130 stepper driver current
      */
-    #if ENABLED(HAVE_TMC2130)
+    #if HAS_TRINAMIC
       if (!forReplay) {
         CONFIG_ECHO_START;
         SERIAL_ECHOLNPGM("Stepper driver current:");
     /**
      * TMC2130 Sensorless homing thresholds
      */
-    #if ENABLED(HAVE_TMC2130) && ENABLED(SENSORLESS_HOMING)
+    #if ENABLED(SENSORLESS_HOMING)
       if (!forReplay) {
         CONFIG_ECHO_START;
         SERIAL_ECHOLNPGM("Sensorless homing threshold:");
       SERIAL_ECHOPAIR(" E", stepper.motor_current_setting[2]);
       SERIAL_EOL();
     #endif
+
+    /**
+     * Advanced Pause filament load & unload lengths
+     */
+    #if ENABLED(ADVANCED_PAUSE_FEATURE)
+      if (!forReplay) {
+        CONFIG_ECHO_START;
+        SERIAL_ECHOLNPGM("Filament load/unload lengths:");
+      }
+      CONFIG_ECHO_START;
+      #if EXTRUDERS == 1
+        SERIAL_ECHOPAIR("  M603 L", LINEAR_UNIT(filament_change_load_length[0]));
+        SERIAL_ECHOLNPAIR(" U", LINEAR_UNIT(filament_change_unload_length[0]));
+      #else
+        SERIAL_ECHOPAIR("  M603 T0 L", LINEAR_UNIT(filament_change_load_length[0]));
+        SERIAL_ECHOLNPAIR(" U", LINEAR_UNIT(filament_change_unload_length[0]));
+        CONFIG_ECHO_START;
+        SERIAL_ECHOPAIR("  M603 T1 L", LINEAR_UNIT(filament_change_load_length[1]));
+        SERIAL_ECHOLNPAIR(" U", LINEAR_UNIT(filament_change_unload_length[1]));
+        #if EXTRUDERS > 2
+          CONFIG_ECHO_START;
+          SERIAL_ECHOPAIR("  M603 T2 L", LINEAR_UNIT(filament_change_load_length[2]));
+          SERIAL_ECHOLNPAIR(" U", LINEAR_UNIT(filament_change_unload_length[2]));
+          #if EXTRUDERS > 3
+            CONFIG_ECHO_START;
+            SERIAL_ECHOPAIR("  M603 T3 L", LINEAR_UNIT(filament_change_load_length[3]));
+            SERIAL_ECHOLNPAIR(" U", LINEAR_UNIT(filament_change_unload_length[3]));
+            #if EXTRUDERS > 4
+              CONFIG_ECHO_START;
+              SERIAL_ECHOPAIR("  M603 T4 L", LINEAR_UNIT(filament_change_load_length[4]));
+              SERIAL_ECHOLNPAIR(" U", LINEAR_UNIT(filament_change_unload_length[4]));
+            #endif // EXTRUDERS > 4
+          #endif // EXTRUDERS > 3
+        #endif // EXTRUDERS > 2
+      #endif // EXTRUDERS == 1
+    #endif // ADVANCED_PAUSE_FEATURE
   }
 
 #endif // !DISABLE_M503