Apply physical limits to mesh bounds

Marlin/Conditionals_post.h

   #endif
 
   /**
+   * Bed Probing rectangular bounds
+   * These can be further constrained in code for Delta and SCARA
+   */
+  #if ENABLED(DELTA)
+    // Probing points may be verified at compile time within the radius
+    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
+    // so that may be added to SanityCheck.h in the future.
+    #define MIN_PROBE_X (X_CENTER - (DELTA_PROBEABLE_RADIUS))
+    #define MIN_PROBE_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS))
+    #define MAX_PROBE_X (X_CENTER +  DELTA_PROBEABLE_RADIUS)
+    #define MAX_PROBE_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS)
+  #elif IS_SCARA
+    #define SCARA_PRINTABLE_RADIUS (SCARA_LINKAGE_1 + SCARA_LINKAGE_2)
+    #define MIN_PROBE_X (X_CENTER - (SCARA_PRINTABLE_RADIUS))
+    #define MIN_PROBE_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS))
+    #define MAX_PROBE_X (X_CENTER +  SCARA_PRINTABLE_RADIUS)
+    #define MAX_PROBE_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS)
+  #else
+    // Boundaries for Cartesian probing based on bed limits
+    #define MIN_PROBE_X (max(X_MIN_BED, X_MIN_POS + X_PROBE_OFFSET_FROM_EXTRUDER))
+    #define MIN_PROBE_Y (max(Y_MIN_BED, Y_MIN_POS + Y_PROBE_OFFSET_FROM_EXTRUDER))
+    #define MAX_PROBE_X (min(X_MAX_BED, X_MAX_POS + X_PROBE_OFFSET_FROM_EXTRUDER))
+    #define MAX_PROBE_Y (min(Y_MAX_BED, Y_MAX_POS + Y_PROBE_OFFSET_FROM_EXTRUDER))
+  #endif
+
+  /**
+   * Default mesh area is an area with an inset margin on the print area.
+   */
+  #if ENABLED(MESH_BED_LEVELING) || ENABLED(AUTO_BED_LEVELING_UBL)
+    #if IS_KINEMATIC
+      // Probing points may be verified at compile time within the radius
+      // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
+      // so that may be added to SanityCheck.h in the future.
+      #define _MESH_MIN_X (MIN_PROBE_X + MESH_INSET)
+      #define _MESH_MIN_Y (MIN_PROBE_Y + MESH_INSET)
+      #define _MESH_MAX_X (MAX_PROBE_X - (MESH_INSET))
+      #define _MESH_MAX_Y (MAX_PROBE_Y - (MESH_INSET))
+    #else
+      // Boundaries for Cartesian probing based on set limits
+      #define _MESH_MIN_X (max(X_MIN_BED + MESH_INSET, X_MIN_POS + X_PROBE_OFFSET_FROM_EXTRUDER))
+      #define _MESH_MIN_Y (max(Y_MIN_BED + MESH_INSET, Y_MIN_POS + Y_PROBE_OFFSET_FROM_EXTRUDER))
+      #define _MESH_MAX_X (min(X_MAX_BED - (MESH_INSET), X_MAX_POS + X_PROBE_OFFSET_FROM_EXTRUDER))
+      #define _MESH_MAX_Y (min(Y_MAX_BED - (MESH_INSET), Y_MAX_POS + Y_PROBE_OFFSET_FROM_EXTRUDER))
+    #endif
+    /**
+     * These may be overridden in Configuration if a smaller area is wanted
+     */
+    #if ENABLED(MESH_BED_LEVELING) || ENABLED(AUTO_BED_LEVELING_UBL)
+      #ifndef MESH_MIN_X
+        #define MESH_MIN_X _MESH_MIN_X
+      #endif
+      #ifndef MESH_MIN_Y
+        #define MESH_MIN_Y _MESH_MIN_Y
+      #endif
+      #ifndef MESH_MAX_X
+        #define MESH_MAX_X _MESH_MAX_X
+      #endif
+      #ifndef MESH_MAX_Y
+        #define MESH_MAX_Y _MESH_MAX_Y
+      #endif
+    #endif
+  #endif // MESH_BED_LEVELING || AUTO_BED_LEVELING_UBL
+
+  /**
    * Buzzer/Speaker
    */
   #if ENABLED(LCD_USE_I2C_BUZZER)
     #define MANUAL_PROBE_HEIGHT Z_HOMING_HEIGHT
   #endif
 
-  /**
-   * Bed Probing rectangular bounds
-   * These can be further constrained in code for Delta and SCARA
-   */
-  #if ENABLED(DELTA)
-    #ifndef DELTA_PROBEABLE_RADIUS
-      #define DELTA_PROBEABLE_RADIUS DELTA_PRINTABLE_RADIUS
-    #endif
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define MIN_PROBE_X (X_CENTER - (DELTA_PROBEABLE_RADIUS))
-    #define MIN_PROBE_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS))
-    #define MAX_PROBE_X (X_CENTER +  DELTA_PROBEABLE_RADIUS)
-    #define MAX_PROBE_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS)
-  #elif IS_SCARA
-    #define SCARA_PRINTABLE_RADIUS (SCARA_LINKAGE_1 + SCARA_LINKAGE_2)
-    #define MIN_PROBE_X (X_CENTER - (SCARA_PRINTABLE_RADIUS))
-    #define MIN_PROBE_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS))
-    #define MAX_PROBE_X (X_CENTER +  SCARA_PRINTABLE_RADIUS)
-    #define MAX_PROBE_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS)
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #define MIN_PROBE_X (max(X_MIN_POS + X_PROBE_OFFSET_FROM_EXTRUDER, X_MIN_BED))
-    #define MIN_PROBE_Y (max(Y_MIN_POS + Y_PROBE_OFFSET_FROM_EXTRUDER, Y_MIN_BED))
-    #define MAX_PROBE_X (min(X_MAX_POS + X_PROBE_OFFSET_FROM_EXTRUDER, X_MAX_BED))
-    #define MAX_PROBE_Y (min(Y_MAX_POS + Y_PROBE_OFFSET_FROM_EXTRUDER, Y_MAX_BED))
-  #endif
-
   // Stepper pulse duration, in cycles
   #define STEP_PULSE_CYCLES ((MINIMUM_STEPPER_PULSE) * CYCLES_PER_MICROSECOND)
 

Marlin/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/Configuration_adv.h

   // Note: This is always disabled for ULTIPANEL (except ELB_FULL_GRAPHIC_CONTROLLER).
   #define SD_DETECT_INVERTED
 
-  #define SD_FINISHED_STEPPERRELEASE true  //if sd support and the file is finished: disable steppers?
+  #define SD_FINISHED_STEPPERRELEASE true          // Disable steppers when SD Print is finished
   #define SD_FINISHED_RELEASECOMMAND "M84 X Y Z E" // You might want to keep the z enabled so your bed stays in place.
 
-  #define SDCARD_RATHERRECENTFIRST  //reverse file order of sd card menu display. Its sorted practically after the file system block order.
-  // if a file is deleted, it frees a block. hence, the order is not purely chronological. To still have auto0.g accessible, there is again the option to do that.
-  // using:
+  // Reverse SD sort to show "more recent" files first, according to the card's FAT.
+  // Since the FAT gets out of order with usage, SDCARD_SORT_ALPHA is recommended.
+  #define SDCARD_RATHERRECENTFIRST
+
+  // Add an option in the menu to run all auto#.g files
   //#define MENU_ADDAUTOSTART
 
   /**
   #define SCARA_PRINTABLE_RADIUS (SCARA_LINKAGE_1 + SCARA_LINKAGE_2)
 #endif
 
-// Default mesh area is an area with an inset margin on the print area.
-// Below are the macros that are used to define the borders for the mesh area,
-// made available here for specialized needs, ie dual extruder setup.
-#if ENABLED(MESH_BED_LEVELING)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-  #elif IS_SCARA
-    #define MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define MESH_MIN_X (max(MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define MESH_MIN_Y (max(MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define MESH_MAX_X (min(X_BED_SIZE - (MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define MESH_MAX_Y (min(Y_BED_SIZE - (MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define MESH_MIN_X (max(X_MIN_POS + MESH_INSET, 0))
-      #define MESH_MIN_Y (max(Y_MIN_POS + MESH_INSET, 0))
-      #define MESH_MAX_X (min(X_MAX_POS - (MESH_INSET), X_BED_SIZE))
-      #define MESH_MAX_Y (min(Y_MAX_POS - (MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
-#elif ENABLED(AUTO_BED_LEVELING_UBL)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define UBL_MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-  #elif IS_SCARA
-    #define UBL_MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define UBL_MESH_MIN_X (max(UBL_MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MIN_Y (max(UBL_MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_X (min(X_BED_SIZE - (UBL_MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_Y (min(Y_BED_SIZE - (UBL_MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define UBL_MESH_MIN_X (max(X_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MIN_Y (max(Y_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MAX_X (min(X_MAX_POS - (UBL_MESH_INSET), X_BED_SIZE))
-      #define UBL_MESH_MAX_Y (min(Y_MAX_POS - (UBL_MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
+#if ENABLED(MESH_BED_LEVELING) || ENABLED(AUTO_BED_LEVELING_UBL)
+  // Override the mesh area if the automatic (max) area is too large
+  //#define MESH_MIN_X MESH_INSET
+  //#define MESH_MIN_Y MESH_INSET
+  //#define MESH_MAX_X X_BED_SIZE - (MESH_INSET)
+  //#define MESH_MAX_Y Y_BED_SIZE - (MESH_INSET)
 
-  // If this is defined, the currently active mesh will be saved in the
-  // current slot on M500.
-  #define UBL_SAVE_ACTIVE_ON_M500
+  #if ENABLED(AUTO_BED_LEVELING_UBL)
+    #define UBL_SAVE_ACTIVE_ON_M500 // Save the currently active mesh in the current slot on M500
+  #endif
 #endif
 
 // @section extras

Marlin/SanityCheck.h

   #error "ADVANCE was removed in Marlin 1.1.6. Please use LIN_ADVANCE."
 #elif defined(NEOPIXEL_RGBW_LED)
   #error "NEOPIXEL_RGBW_LED is now NEOPIXEL_LED. Please update your configuration."
+#elif defined(UBL_MESH_INSET)
+  #error "UBL_MESH_INSET is now just MESH_INSET. Please update your configuration."
+#elif defined(UBL_MESH_MIN_X) || defined(UBL_MESH_MIN_Y) || defined(UBL_MESH_MAX_X)  || defined(UBL_MESH_MAX_Y)
+  #error "UBL_MESH_(MIN|MAX)_[XY] is now just MESH_(MIN|MAX)_[XY]. Please update your configuration."
 #endif
 
 /**

Marlin/example_configurations/AlephObjects/TAZ4/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/AlephObjects/TAZ4/Configuration_adv.h

   // Note: This is always disabled for ULTIPANEL (except ELB_FULL_GRAPHIC_CONTROLLER).
   #define SD_DETECT_INVERTED
 
-  #define SD_FINISHED_STEPPERRELEASE true  //if sd support and the file is finished: disable steppers?
+  #define SD_FINISHED_STEPPERRELEASE true          // Disable steppers when SD Print is finished
   #define SD_FINISHED_RELEASECOMMAND "M84 X Y Z E" // You might want to keep the z enabled so your bed stays in place.
 
-  #define SDCARD_RATHERRECENTFIRST  //reverse file order of sd card menu display. Its sorted practically after the file system block order.
-  // if a file is deleted, it frees a block. hence, the order is not purely chronological. To still have auto0.g accessible, there is again the option to do that.
-  // using:
+  // Reverse SD sort to show "more recent" files first, according to the card's FAT.
+  // Since the FAT gets out of order with usage, SDCARD_SORT_ALPHA is recommended.
+  #define SDCARD_RATHERRECENTFIRST
+
+  // Add an option in the menu to run all auto#.g files
   //#define MENU_ADDAUTOSTART
 
   /**
   #define SCARA_PRINTABLE_RADIUS (SCARA_LINKAGE_1 + SCARA_LINKAGE_2)
 #endif
 
-// Default mesh area is an area with an inset margin on the print area.
-// Below are the macros that are used to define the borders for the mesh area,
-// made available here for specialized needs, ie dual extruder setup.
-#if ENABLED(MESH_BED_LEVELING)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-  #elif IS_SCARA
-    #define MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define MESH_MIN_X (max(MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define MESH_MIN_Y (max(MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define MESH_MAX_X (min(X_BED_SIZE - (MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define MESH_MAX_Y (min(Y_BED_SIZE - (MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define MESH_MIN_X (max(X_MIN_POS + MESH_INSET, 0))
-      #define MESH_MIN_Y (max(Y_MIN_POS + MESH_INSET, 0))
-      #define MESH_MAX_X (min(X_MAX_POS - (MESH_INSET), X_BED_SIZE))
-      #define MESH_MAX_Y (min(Y_MAX_POS - (MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
-#elif ENABLED(AUTO_BED_LEVELING_UBL)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define UBL_MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-  #elif IS_SCARA
-    #define UBL_MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define UBL_MESH_MIN_X (max(UBL_MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MIN_Y (max(UBL_MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_X (min(X_BED_SIZE - (UBL_MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_Y (min(Y_BED_SIZE - (UBL_MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define UBL_MESH_MIN_X (max(X_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MIN_Y (max(Y_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MAX_X (min(X_MAX_POS - (UBL_MESH_INSET), X_BED_SIZE))
-      #define UBL_MESH_MAX_Y (min(Y_MAX_POS - (UBL_MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
+#if ENABLED(MESH_BED_LEVELING) || ENABLED(AUTO_BED_LEVELING_UBL)
+  // Override the mesh area if the automatic (max) area is too large
+  //#define MESH_MIN_X MESH_INSET
+  //#define MESH_MIN_Y MESH_INSET
+  //#define MESH_MAX_X X_BED_SIZE - (MESH_INSET)
+  //#define MESH_MAX_Y Y_BED_SIZE - (MESH_INSET)
 
-  // If this is defined, the currently active mesh will be saved in the
-  // current slot on M500.
-  #define UBL_SAVE_ACTIVE_ON_M500
+  #if ENABLED(AUTO_BED_LEVELING_UBL)
+    #define UBL_SAVE_ACTIVE_ON_M500 // Save the currently active mesh in the current slot on M500
+  #endif
 #endif
 
 // @section extras

Marlin/example_configurations/AliExpress/CL-260/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/Anet/A6/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/Anet/A6/Configuration_adv.h

   // Note: This is always disabled for ULTIPANEL (except ELB_FULL_GRAPHIC_CONTROLLER).
   //#define SD_DETECT_INVERTED
 
-  #define SD_FINISHED_STEPPERRELEASE true  //if sd support and the file is finished: disable steppers?
+  #define SD_FINISHED_STEPPERRELEASE true          // Disable steppers when SD Print is finished
   #define SD_FINISHED_RELEASECOMMAND "M84 X Y Z E" // You might want to keep the z enabled so your bed stays in place.
 
-  #define SDCARD_RATHERRECENTFIRST  //reverse file order of sd card menu display. Its sorted practically after the file system block order.
-  // if a file is deleted, it frees a block. hence, the order is not purely chronological. To still have auto0.g accessible, there is again the option to do that.
-  // using:
+  // Reverse SD sort to show "more recent" files first, according to the card's FAT.
+  // Since the FAT gets out of order with usage, SDCARD_SORT_ALPHA is recommended.
+  #define SDCARD_RATHERRECENTFIRST
+
+  // Add an option in the menu to run all auto#.g files
   //#define MENU_ADDAUTOSTART
 
   /**
   #define SCARA_PRINTABLE_RADIUS (SCARA_LINKAGE_1 + SCARA_LINKAGE_2)
 #endif
 
-// Default mesh area is an area with an inset margin on the print area.
-// Below are the macros that are used to define the borders for the mesh area,
-// made available here for specialized needs, ie dual extruder setup.
-#if ENABLED(MESH_BED_LEVELING)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-  #elif IS_SCARA
-    #define MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define MESH_MIN_X (max(MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define MESH_MIN_Y (max(MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define MESH_MAX_X (min(X_BED_SIZE - (MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define MESH_MAX_Y (min(Y_BED_SIZE - (MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define MESH_MIN_X (max(X_MIN_POS + MESH_INSET, 0))
-      #define MESH_MIN_Y (max(Y_MIN_POS + MESH_INSET, 0))
-      #define MESH_MAX_X (min(X_MAX_POS - (MESH_INSET), X_BED_SIZE))
-      #define MESH_MAX_Y (min(Y_MAX_POS - (MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
-#elif ENABLED(AUTO_BED_LEVELING_UBL)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define UBL_MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-  #elif IS_SCARA
-    #define UBL_MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define UBL_MESH_MIN_X (max(UBL_MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MIN_Y (max(UBL_MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_X (min(X_BED_SIZE - (UBL_MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_Y (min(Y_BED_SIZE - (UBL_MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define UBL_MESH_MIN_X (max(X_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MIN_Y (max(Y_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MAX_X (min(X_MAX_POS - (UBL_MESH_INSET), X_BED_SIZE))
-      #define UBL_MESH_MAX_Y (min(Y_MAX_POS - (UBL_MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
+#if ENABLED(MESH_BED_LEVELING) || ENABLED(AUTO_BED_LEVELING_UBL)
+  // Override the mesh area if the automatic (max) area is too large
+  //#define MESH_MIN_X MESH_INSET
+  //#define MESH_MIN_Y MESH_INSET
+  //#define MESH_MAX_X X_BED_SIZE - (MESH_INSET)
+  //#define MESH_MAX_Y Y_BED_SIZE - (MESH_INSET)
 
-  // If this is defined, the currently active mesh will be saved in the
-  // current slot on M500.
-  #define UBL_SAVE_ACTIVE_ON_M500
+  #if ENABLED(AUTO_BED_LEVELING_UBL)
+    #define UBL_SAVE_ACTIVE_ON_M500 // Save the currently active mesh in the current slot on M500
+  #endif
 #endif
 
 // @section extras

Marlin/example_configurations/Anet/A8/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/Anet/A8/Configuration_adv.h

   // Note: This is always disabled for ULTIPANEL (except ELB_FULL_GRAPHIC_CONTROLLER).
   //#define SD_DETECT_INVERTED
 
-  #define SD_FINISHED_STEPPERRELEASE true  //if sd support and the file is finished: disable steppers?
+  #define SD_FINISHED_STEPPERRELEASE true          // Disable steppers when SD Print is finished
   #define SD_FINISHED_RELEASECOMMAND "M84 X Y Z E" // You might want to keep the z enabled so your bed stays in place.
 
-  #define SDCARD_RATHERRECENTFIRST  //reverse file order of sd card menu display. Its sorted practically after the file system block order.
-  // if a file is deleted, it frees a block. hence, the order is not purely chronological. To still have auto0.g accessible, there is again the option to do that.
-  // using:
+  // Reverse SD sort to show "more recent" files first, according to the card's FAT.
+  // Since the FAT gets out of order with usage, SDCARD_SORT_ALPHA is recommended.
+  #define SDCARD_RATHERRECENTFIRST
+
+  // Add an option in the menu to run all auto#.g files
   //#define MENU_ADDAUTOSTART
 
   /**
   #define SCARA_PRINTABLE_RADIUS (SCARA_LINKAGE_1 + SCARA_LINKAGE_2)
 #endif
 
-// Default mesh area is an area with an inset margin on the print area.
-// Below are the macros that are used to define the borders for the mesh area,
-// made available here for specialized needs, ie dual extruder setup.
-#if ENABLED(MESH_BED_LEVELING)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-  #elif IS_SCARA
-    #define MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define MESH_MIN_X (max(MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define MESH_MIN_Y (max(MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define MESH_MAX_X (min(X_BED_SIZE - (MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define MESH_MAX_Y (min(Y_BED_SIZE - (MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define MESH_MIN_X (max(X_MIN_POS + MESH_INSET, 0))
-      #define MESH_MIN_Y (max(Y_MIN_POS + MESH_INSET, 0))
-      #define MESH_MAX_X (min(X_MAX_POS - (MESH_INSET), X_BED_SIZE))
-      #define MESH_MAX_Y (min(Y_MAX_POS - (MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
-#elif ENABLED(AUTO_BED_LEVELING_UBL)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define UBL_MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-  #elif IS_SCARA
-    #define UBL_MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define UBL_MESH_MIN_X (max(UBL_MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MIN_Y (max(UBL_MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_X (min(X_BED_SIZE - (UBL_MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_Y (min(Y_BED_SIZE - (UBL_MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define UBL_MESH_MIN_X (max(X_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MIN_Y (max(Y_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MAX_X (min(X_MAX_POS - (UBL_MESH_INSET), X_BED_SIZE))
-      #define UBL_MESH_MAX_Y (min(Y_MAX_POS - (UBL_MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
+#if ENABLED(MESH_BED_LEVELING) || ENABLED(AUTO_BED_LEVELING_UBL)
+  // Override the mesh area if the automatic (max) area is too large
+  //#define MESH_MIN_X MESH_INSET
+  //#define MESH_MIN_Y MESH_INSET
+  //#define MESH_MAX_X X_BED_SIZE - (MESH_INSET)
+  //#define MESH_MAX_Y Y_BED_SIZE - (MESH_INSET)
 
-  // If this is defined, the currently active mesh will be saved in the
-  // current slot on M500.
-  #define UBL_SAVE_ACTIVE_ON_M500
+  #if ENABLED(AUTO_BED_LEVELING_UBL)
+    #define UBL_SAVE_ACTIVE_ON_M500 // Save the currently active mesh in the current slot on M500
+  #endif
 #endif
 
 // @section extras

Marlin/example_configurations/BQ/Hephestos/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/BQ/Hephestos/Configuration_adv.h

   // Note: This is always disabled for ULTIPANEL (except ELB_FULL_GRAPHIC_CONTROLLER).
   #define SD_DETECT_INVERTED
 
-  #define SD_FINISHED_STEPPERRELEASE true  //if sd support and the file is finished: disable steppers?
+  #define SD_FINISHED_STEPPERRELEASE true          // Disable steppers when SD Print is finished
   #define SD_FINISHED_RELEASECOMMAND "M84 X Y Z E" // You might want to keep the z enabled so your bed stays in place.
 
-  #define SDCARD_RATHERRECENTFIRST  //reverse file order of sd card menu display. Its sorted practically after the file system block order.
-  // if a file is deleted, it frees a block. hence, the order is not purely chronological. To still have auto0.g accessible, there is again the option to do that.
-  // using:
+  // Reverse SD sort to show "more recent" files first, according to the card's FAT.
+  // Since the FAT gets out of order with usage, SDCARD_SORT_ALPHA is recommended.
+  #define SDCARD_RATHERRECENTFIRST
+
+  // Add an option in the menu to run all auto#.g files
   //#define MENU_ADDAUTOSTART
 
   /**
   #define SCARA_PRINTABLE_RADIUS (SCARA_LINKAGE_1 + SCARA_LINKAGE_2)
 #endif
 
-// Default mesh area is an area with an inset margin on the print area.
-// Below are the macros that are used to define the borders for the mesh area,
-// made available here for specialized needs, ie dual extruder setup.
-#if ENABLED(MESH_BED_LEVELING)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-  #elif IS_SCARA
-    #define MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define MESH_MIN_X (max(MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define MESH_MIN_Y (max(MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define MESH_MAX_X (min(X_BED_SIZE - (MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define MESH_MAX_Y (min(Y_BED_SIZE - (MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define MESH_MIN_X (max(X_MIN_POS + MESH_INSET, 0))
-      #define MESH_MIN_Y (max(Y_MIN_POS + MESH_INSET, 0))
-      #define MESH_MAX_X (min(X_MAX_POS - (MESH_INSET), X_BED_SIZE))
-      #define MESH_MAX_Y (min(Y_MAX_POS - (MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
-#elif ENABLED(AUTO_BED_LEVELING_UBL)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define UBL_MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-  #elif IS_SCARA
-    #define UBL_MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define UBL_MESH_MIN_X (max(UBL_MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MIN_Y (max(UBL_MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_X (min(X_BED_SIZE - (UBL_MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_Y (min(Y_BED_SIZE - (UBL_MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define UBL_MESH_MIN_X (max(X_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MIN_Y (max(Y_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MAX_X (min(X_MAX_POS - (UBL_MESH_INSET), X_BED_SIZE))
-      #define UBL_MESH_MAX_Y (min(Y_MAX_POS - (UBL_MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
+#if ENABLED(MESH_BED_LEVELING) || ENABLED(AUTO_BED_LEVELING_UBL)
+  // Override the mesh area if the automatic (max) area is too large
+  //#define MESH_MIN_X MESH_INSET
+  //#define MESH_MIN_Y MESH_INSET
+  //#define MESH_MAX_X X_BED_SIZE - (MESH_INSET)
+  //#define MESH_MAX_Y Y_BED_SIZE - (MESH_INSET)
 
-  // If this is defined, the currently active mesh will be saved in the
-  // current slot on M500.
-  #define UBL_SAVE_ACTIVE_ON_M500
+  #if ENABLED(AUTO_BED_LEVELING_UBL)
+    #define UBL_SAVE_ACTIVE_ON_M500 // Save the currently active mesh in the current slot on M500
+  #endif
 #endif
 
 // @section extras

Marlin/example_configurations/BQ/Hephestos_2/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/BQ/Hephestos_2/Configuration_adv.h

   // Note: This is always disabled for ULTIPANEL (except ELB_FULL_GRAPHIC_CONTROLLER).
   #define SD_DETECT_INVERTED
 
-  #define SD_FINISHED_STEPPERRELEASE true  //if sd support and the file is finished: disable steppers?
+  #define SD_FINISHED_STEPPERRELEASE true          // Disable steppers when SD Print is finished
   #define SD_FINISHED_RELEASECOMMAND "M104 S0\nM84 X Y Z E" // You might want to keep the z enabled so your bed stays in place.
 
-  #define SDCARD_RATHERRECENTFIRST  //reverse file order of sd card menu display. Its sorted practically after the file system block order.
-  // if a file is deleted, it frees a block. hence, the order is not purely chronological. To still have auto0.g accessible, there is again the option to do that.
-  // using:
+  // Reverse SD sort to show "more recent" files first, according to the card's FAT.
+  // Since the FAT gets out of order with usage, SDCARD_SORT_ALPHA is recommended.
+  #define SDCARD_RATHERRECENTFIRST
+
+  // Add an option in the menu to run all auto#.g files
   //#define MENU_ADDAUTOSTART
 
   /**
   #define SCARA_PRINTABLE_RADIUS (SCARA_LINKAGE_1 + SCARA_LINKAGE_2)
 #endif
 
-// Default mesh area is an area with an inset margin on the print area.
-// Below are the macros that are used to define the borders for the mesh area,
-// made available here for specialized needs, ie dual extruder setup.
-#if ENABLED(MESH_BED_LEVELING)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-  #elif IS_SCARA
-    #define MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define MESH_MIN_X (max(MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define MESH_MIN_Y (max(MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define MESH_MAX_X (min(X_BED_SIZE - (MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define MESH_MAX_Y (min(Y_BED_SIZE - (MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define MESH_MIN_X (max(X_MIN_POS + MESH_INSET, 0))
-      #define MESH_MIN_Y (max(Y_MIN_POS + MESH_INSET, 0))
-      #define MESH_MAX_X (min(X_MAX_POS - (MESH_INSET), X_BED_SIZE))
-      #define MESH_MAX_Y (min(Y_MAX_POS - (MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
-#elif ENABLED(AUTO_BED_LEVELING_UBL)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define UBL_MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-  #elif IS_SCARA
-    #define UBL_MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define UBL_MESH_MIN_X (max(UBL_MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MIN_Y (max(UBL_MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_X (min(X_BED_SIZE - (UBL_MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_Y (min(Y_BED_SIZE - (UBL_MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define UBL_MESH_MIN_X (max(X_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MIN_Y (max(Y_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MAX_X (min(X_MAX_POS - (UBL_MESH_INSET), X_BED_SIZE))
-      #define UBL_MESH_MAX_Y (min(Y_MAX_POS - (UBL_MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
+#if ENABLED(MESH_BED_LEVELING) || ENABLED(AUTO_BED_LEVELING_UBL)
+  // Override the mesh area if the automatic (max) area is too large
+  //#define MESH_MIN_X MESH_INSET
+  //#define MESH_MIN_Y MESH_INSET
+  //#define MESH_MAX_X X_BED_SIZE - (MESH_INSET)
+  //#define MESH_MAX_Y Y_BED_SIZE - (MESH_INSET)
 
-  // If this is defined, the currently active mesh will be saved in the
-  // current slot on M500.
-  #define UBL_SAVE_ACTIVE_ON_M500
+  #if ENABLED(AUTO_BED_LEVELING_UBL)
+    #define UBL_SAVE_ACTIVE_ON_M500 // Save the currently active mesh in the current slot on M500
+  #endif
 #endif
 
 // @section extras

Marlin/example_configurations/BQ/WITBOX/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/BQ/WITBOX/Configuration_adv.h

   // Note: This is always disabled for ULTIPANEL (except ELB_FULL_GRAPHIC_CONTROLLER).
   #define SD_DETECT_INVERTED
 
-  #define SD_FINISHED_STEPPERRELEASE true  //if sd support and the file is finished: disable steppers?
+  #define SD_FINISHED_STEPPERRELEASE true          // Disable steppers when SD Print is finished
   #define SD_FINISHED_RELEASECOMMAND "M84 X Y Z E" // You might want to keep the z enabled so your bed stays in place.
 
-  #define SDCARD_RATHERRECENTFIRST  //reverse file order of sd card menu display. Its sorted practically after the file system block order.
-  // if a file is deleted, it frees a block. hence, the order is not purely chronological. To still have auto0.g accessible, there is again the option to do that.
-  // using:
+  // Reverse SD sort to show "more recent" files first, according to the card's FAT.
+  // Since the FAT gets out of order with usage, SDCARD_SORT_ALPHA is recommended.
+  #define SDCARD_RATHERRECENTFIRST
+
+  // Add an option in the menu to run all auto#.g files
   //#define MENU_ADDAUTOSTART
 
   /**
   #define SCARA_PRINTABLE_RADIUS (SCARA_LINKAGE_1 + SCARA_LINKAGE_2)
 #endif
 
-// Default mesh area is an area with an inset margin on the print area.
-// Below are the macros that are used to define the borders for the mesh area,
-// made available here for specialized needs, ie dual extruder setup.
-#if ENABLED(MESH_BED_LEVELING)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-  #elif IS_SCARA
-    #define MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define MESH_MIN_X (max(MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define MESH_MIN_Y (max(MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define MESH_MAX_X (min(X_BED_SIZE - (MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define MESH_MAX_Y (min(Y_BED_SIZE - (MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define MESH_MIN_X (max(X_MIN_POS + MESH_INSET, 0))
-      #define MESH_MIN_Y (max(Y_MIN_POS + MESH_INSET, 0))
-      #define MESH_MAX_X (min(X_MAX_POS - (MESH_INSET), X_BED_SIZE))
-      #define MESH_MAX_Y (min(Y_MAX_POS - (MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
-#elif ENABLED(AUTO_BED_LEVELING_UBL)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define UBL_MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-  #elif IS_SCARA
-    #define UBL_MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define UBL_MESH_MIN_X (max(UBL_MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MIN_Y (max(UBL_MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_X (min(X_BED_SIZE - (UBL_MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_Y (min(Y_BED_SIZE - (UBL_MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define UBL_MESH_MIN_X (max(X_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MIN_Y (max(Y_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MAX_X (min(X_MAX_POS - (UBL_MESH_INSET), X_BED_SIZE))
-      #define UBL_MESH_MAX_Y (min(Y_MAX_POS - (UBL_MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
+#if ENABLED(MESH_BED_LEVELING) || ENABLED(AUTO_BED_LEVELING_UBL)
+  // Override the mesh area if the automatic (max) area is too large
+  //#define MESH_MIN_X MESH_INSET
+  //#define MESH_MIN_Y MESH_INSET
+  //#define MESH_MAX_X X_BED_SIZE - (MESH_INSET)
+  //#define MESH_MAX_Y Y_BED_SIZE - (MESH_INSET)
 
-  // If this is defined, the currently active mesh will be saved in the
-  // current slot on M500.
-  #define UBL_SAVE_ACTIVE_ON_M500
+  #if ENABLED(AUTO_BED_LEVELING_UBL)
+    #define UBL_SAVE_ACTIVE_ON_M500 // Save the currently active mesh in the current slot on M500
+  #endif
 #endif
 
 // @section extras

Marlin/example_configurations/Cartesio/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/Cartesio/Configuration_adv.h

   // Note: This is always disabled for ULTIPANEL (except ELB_FULL_GRAPHIC_CONTROLLER).
   #define SD_DETECT_INVERTED
 
-  #define SD_FINISHED_STEPPERRELEASE true  //if sd support and the file is finished: disable steppers?
+  #define SD_FINISHED_STEPPERRELEASE true          // Disable steppers when SD Print is finished
   #define SD_FINISHED_RELEASECOMMAND "M84 X Y Z E" // You might want to keep the z enabled so your bed stays in place.
 
-  #define SDCARD_RATHERRECENTFIRST  //reverse file order of sd card menu display. Its sorted practically after the file system block order.
-  // if a file is deleted, it frees a block. hence, the order is not purely chronological. To still have auto0.g accessible, there is again the option to do that.
-  // using:
+  // Reverse SD sort to show "more recent" files first, according to the card's FAT.
+  // Since the FAT gets out of order with usage, SDCARD_SORT_ALPHA is recommended.
+  #define SDCARD_RATHERRECENTFIRST
+
+  // Add an option in the menu to run all auto#.g files
   //#define MENU_ADDAUTOSTART
 
   /**
   #define SCARA_PRINTABLE_RADIUS (SCARA_LINKAGE_1 + SCARA_LINKAGE_2)
 #endif
 
-// Default mesh area is an area with an inset margin on the print area.
-// Below are the macros that are used to define the borders for the mesh area,
-// made available here for specialized needs, ie dual extruder setup.
-#if ENABLED(MESH_BED_LEVELING)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-  #elif IS_SCARA
-    #define MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define MESH_MIN_X (max(MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define MESH_MIN_Y (max(MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define MESH_MAX_X (min(X_BED_SIZE - (MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define MESH_MAX_Y (min(Y_BED_SIZE - (MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define MESH_MIN_X (max(X_MIN_POS + MESH_INSET, 0))
-      #define MESH_MIN_Y (max(Y_MIN_POS + MESH_INSET, 0))
-      #define MESH_MAX_X (min(X_MAX_POS - (MESH_INSET), X_BED_SIZE))
-      #define MESH_MAX_Y (min(Y_MAX_POS - (MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
-#elif ENABLED(AUTO_BED_LEVELING_UBL)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define UBL_MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-  #elif IS_SCARA
-    #define UBL_MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define UBL_MESH_MIN_X (max(UBL_MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MIN_Y (max(UBL_MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_X (min(X_BED_SIZE - (UBL_MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_Y (min(Y_BED_SIZE - (UBL_MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define UBL_MESH_MIN_X (max(X_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MIN_Y (max(Y_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MAX_X (min(X_MAX_POS - (UBL_MESH_INSET), X_BED_SIZE))
-      #define UBL_MESH_MAX_Y (min(Y_MAX_POS - (UBL_MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
+#if ENABLED(MESH_BED_LEVELING) || ENABLED(AUTO_BED_LEVELING_UBL)
+  // Override the mesh area if the automatic (max) area is too large
+  //#define MESH_MIN_X MESH_INSET
+  //#define MESH_MIN_Y MESH_INSET
+  //#define MESH_MAX_X X_BED_SIZE - (MESH_INSET)
+  //#define MESH_MAX_Y Y_BED_SIZE - (MESH_INSET)
 
-  // If this is defined, the currently active mesh will be saved in the
-  // current slot on M500.
-  #define UBL_SAVE_ACTIVE_ON_M500
+  #if ENABLED(AUTO_BED_LEVELING_UBL)
+    #define UBL_SAVE_ACTIVE_ON_M500 // Save the currently active mesh in the current slot on M500
+  #endif
 #endif
 
 // @section extras

Marlin/example_configurations/Creality/CR-10/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/Creality/CR-10/Configuration_adv.h

   // Note: This is always disabled for ULTIPANEL (except ELB_FULL_GRAPHIC_CONTROLLER).
   #define SD_DETECT_INVERTED
 
-  #define SD_FINISHED_STEPPERRELEASE true  //if sd support and the file is finished: disable steppers?
+  #define SD_FINISHED_STEPPERRELEASE true          // Disable steppers when SD Print is finished
   #define SD_FINISHED_RELEASECOMMAND "M84 X Y Z E" // You might want to keep the z enabled so your bed stays in place.
 
-  #define SDCARD_RATHERRECENTFIRST  //reverse file order of sd card menu display. Its sorted practically after the file system block order.
-  // if a file is deleted, it frees a block. hence, the order is not purely chronological. To still have auto0.g accessible, there is again the option to do that.
-  // using:
+  // Reverse SD sort to show "more recent" files first, according to the card's FAT.
+  // Since the FAT gets out of order with usage, SDCARD_SORT_ALPHA is recommended.
+  #define SDCARD_RATHERRECENTFIRST
+
+  // Add an option in the menu to run all auto#.g files
   //#define MENU_ADDAUTOSTART
 
   /**
   #define SCARA_PRINTABLE_RADIUS (SCARA_LINKAGE_1 + SCARA_LINKAGE_2)
 #endif
 
-// Default mesh area is an area with an inset margin on the print area.
-// Below are the macros that are used to define the borders for the mesh area,
-// made available here for specialized needs, ie dual extruder setup.
-#if ENABLED(MESH_BED_LEVELING)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-  #elif IS_SCARA
-    #define MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define MESH_MIN_X (max(MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define MESH_MIN_Y (max(MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define MESH_MAX_X (min(X_BED_SIZE - (MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define MESH_MAX_Y (min(Y_BED_SIZE - (MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define MESH_MIN_X (max(X_MIN_POS + MESH_INSET, 0))
-      #define MESH_MIN_Y (max(Y_MIN_POS + MESH_INSET, 0))
-      #define MESH_MAX_X (min(X_MAX_POS - (MESH_INSET), X_BED_SIZE))
-      #define MESH_MAX_Y (min(Y_MAX_POS - (MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
-#elif ENABLED(AUTO_BED_LEVELING_UBL)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define UBL_MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-  #elif IS_SCARA
-    #define UBL_MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define UBL_MESH_MIN_X (max(UBL_MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MIN_Y (max(UBL_MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_X (min(X_BED_SIZE - (UBL_MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_Y (min(Y_BED_SIZE - (UBL_MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define UBL_MESH_MIN_X (max(X_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MIN_Y (max(Y_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MAX_X (min(X_MAX_POS - (UBL_MESH_INSET), X_BED_SIZE))
-      #define UBL_MESH_MAX_Y (min(Y_MAX_POS - (UBL_MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
+#if ENABLED(MESH_BED_LEVELING) || ENABLED(AUTO_BED_LEVELING_UBL)
+  // Override the mesh area if the automatic (max) area is too large
+  //#define MESH_MIN_X MESH_INSET
+  //#define MESH_MIN_Y MESH_INSET
+  //#define MESH_MAX_X X_BED_SIZE - (MESH_INSET)
+  //#define MESH_MAX_Y Y_BED_SIZE - (MESH_INSET)
 
-  // If this is defined, the currently active mesh will be saved in the
-  // current slot on M500.
-  #define UBL_SAVE_ACTIVE_ON_M500
+  #if ENABLED(AUTO_BED_LEVELING_UBL)
+    #define UBL_SAVE_ACTIVE_ON_M500 // Save the currently active mesh in the current slot on M500
+  #endif
 #endif
 
 // @section extras

Marlin/example_configurations/Felix/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/Felix/Configuration_adv.h

   // Note: This is always disabled for ULTIPANEL (except ELB_FULL_GRAPHIC_CONTROLLER).
   #define SD_DETECT_INVERTED
 
-  #define SD_FINISHED_STEPPERRELEASE true  //if sd support and the file is finished: disable steppers?
+  #define SD_FINISHED_STEPPERRELEASE true          // Disable steppers when SD Print is finished
   #define SD_FINISHED_RELEASECOMMAND "M84 X Y Z E" // You might want to keep the z enabled so your bed stays in place.
 
-  #define SDCARD_RATHERRECENTFIRST  //reverse file order of sd card menu display. Its sorted practically after the file system block order.
-  // if a file is deleted, it frees a block. hence, the order is not purely chronological. To still have auto0.g accessible, there is again the option to do that.
-  // using:
+  // Reverse SD sort to show "more recent" files first, according to the card's FAT.
+  // Since the FAT gets out of order with usage, SDCARD_SORT_ALPHA is recommended.
+  #define SDCARD_RATHERRECENTFIRST
+
+  // Add an option in the menu to run all auto#.g files
   //#define MENU_ADDAUTOSTART
 
   /**
   #define SCARA_PRINTABLE_RADIUS (SCARA_LINKAGE_1 + SCARA_LINKAGE_2)
 #endif
 
-// Default mesh area is an area with an inset margin on the print area.
-// Below are the macros that are used to define the borders for the mesh area,
-// made available here for specialized needs, ie dual extruder setup.
-#if ENABLED(MESH_BED_LEVELING)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-  #elif IS_SCARA
-    #define MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define MESH_MIN_X (max(MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define MESH_MIN_Y (max(MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define MESH_MAX_X (min(X_BED_SIZE - (MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define MESH_MAX_Y (min(Y_BED_SIZE - (MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define MESH_MIN_X (max(X_MIN_POS + MESH_INSET, 0))
-      #define MESH_MIN_Y (max(Y_MIN_POS + MESH_INSET, 0))
-      #define MESH_MAX_X (min(X_MAX_POS - (MESH_INSET), X_BED_SIZE))
-      #define MESH_MAX_Y (min(Y_MAX_POS - (MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
-#elif ENABLED(AUTO_BED_LEVELING_UBL)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define UBL_MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-  #elif IS_SCARA
-    #define UBL_MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define UBL_MESH_MIN_X (max(UBL_MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MIN_Y (max(UBL_MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_X (min(X_BED_SIZE - (UBL_MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_Y (min(Y_BED_SIZE - (UBL_MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define UBL_MESH_MIN_X (max(X_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MIN_Y (max(Y_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MAX_X (min(X_MAX_POS - (UBL_MESH_INSET), X_BED_SIZE))
-      #define UBL_MESH_MAX_Y (min(Y_MAX_POS - (UBL_MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
+#if ENABLED(MESH_BED_LEVELING) || ENABLED(AUTO_BED_LEVELING_UBL)
+  // Override the mesh area if the automatic (max) area is too large
+  //#define MESH_MIN_X MESH_INSET
+  //#define MESH_MIN_Y MESH_INSET
+  //#define MESH_MAX_X X_BED_SIZE - (MESH_INSET)
+  //#define MESH_MAX_Y Y_BED_SIZE - (MESH_INSET)
 
-  // If this is defined, the currently active mesh will be saved in the
-  // current slot on M500.
-  #define UBL_SAVE_ACTIVE_ON_M500
+  #if ENABLED(AUTO_BED_LEVELING_UBL)
+    #define UBL_SAVE_ACTIVE_ON_M500 // Save the currently active mesh in the current slot on M500
+  #endif
 #endif
 
 // @section extras

Marlin/example_configurations/Felix/DUAL/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/Folger Tech/i3-2020/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y 10
 

Marlin/example_configurations/Folger Tech/i3-2020/Configuration_adv.h

   // Note: This is always disabled for ULTIPANEL (except ELB_FULL_GRAPHIC_CONTROLLER).
   #define SD_DETECT_INVERTED
 
-  #define SD_FINISHED_STEPPERRELEASE true  //if sd support and the file is finished: disable steppers?
+  #define SD_FINISHED_STEPPERRELEASE true          // Disable steppers when SD Print is finished
   #define SD_FINISHED_RELEASECOMMAND "M84 X Y Z E" // You might want to keep the z enabled so your bed stays in place.
 
-  #define SDCARD_RATHERRECENTFIRST  //reverse file order of sd card menu display. Its sorted practically after the file system block order.
-  // if a file is deleted, it frees a block. hence, the order is not purely chronological. To still have auto0.g accessible, there is again the option to do that.
-  // using:
+  // Reverse SD sort to show "more recent" files first, according to the card's FAT.
+  // Since the FAT gets out of order with usage, SDCARD_SORT_ALPHA is recommended.
+  #define SDCARD_RATHERRECENTFIRST
+
+  // Add an option in the menu to run all auto#.g files
   //#define MENU_ADDAUTOSTART
 
   /**
   #define SCARA_PRINTABLE_RADIUS (SCARA_LINKAGE_1 + SCARA_LINKAGE_2)
 #endif
 
-// Default mesh area is an area with an inset margin on the print area.
-// Below are the macros that are used to define the borders for the mesh area,
-// made available here for specialized needs, ie dual extruder setup.
-#if ENABLED(MESH_BED_LEVELING)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-  #elif IS_SCARA
-    #define MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define MESH_MIN_X (max(MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define MESH_MIN_Y (max(MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define MESH_MAX_X (min(X_BED_SIZE - (MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define MESH_MAX_Y (min(Y_BED_SIZE - (MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define MESH_MIN_X (max(X_MIN_POS + MESH_INSET, 0))
-      #define MESH_MIN_Y (max(Y_MIN_POS + MESH_INSET, 0))
-      #define MESH_MAX_X (min(X_MAX_POS - (MESH_INSET), X_BED_SIZE))
-      #define MESH_MAX_Y (min(Y_MAX_POS - (MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
-#elif ENABLED(AUTO_BED_LEVELING_UBL)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define UBL_MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-  #elif IS_SCARA
-    #define UBL_MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define UBL_MESH_MIN_X (max(UBL_MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MIN_Y (max(UBL_MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_X (min(X_BED_SIZE - (UBL_MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_Y (min(Y_BED_SIZE - (UBL_MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define UBL_MESH_MIN_X (max(X_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MIN_Y (max(Y_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MAX_X (min(X_MAX_POS - (UBL_MESH_INSET), X_BED_SIZE))
-      #define UBL_MESH_MAX_Y (min(Y_MAX_POS - (UBL_MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
+#if ENABLED(MESH_BED_LEVELING) || ENABLED(AUTO_BED_LEVELING_UBL)
+  // Override the mesh area if the automatic (max) area is too large
+  //#define MESH_MIN_X MESH_INSET
+  //#define MESH_MIN_Y MESH_INSET
+  //#define MESH_MAX_X X_BED_SIZE - (MESH_INSET)
+  //#define MESH_MAX_Y Y_BED_SIZE - (MESH_INSET)
 
-  // If this is defined, the currently active mesh will be saved in the
-  // current slot on M500.
-  #define UBL_SAVE_ACTIVE_ON_M500
+  #if ENABLED(AUTO_BED_LEVELING_UBL)
+    #define UBL_SAVE_ACTIVE_ON_M500 // Save the currently active mesh in the current slot on M500
+  #endif
 #endif
 
 // @section extras

Marlin/example_configurations/Geeetech/GT2560/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/Geeetech/I3_Pro_X-GT2560/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/Infitary/i3-M508/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/Infitary/i3-M508/Configuration_adv.h

   // Note: This is always disabled for ULTIPANEL (except ELB_FULL_GRAPHIC_CONTROLLER).
   #define SD_DETECT_INVERTED
 
-  #define SD_FINISHED_STEPPERRELEASE true  //if sd support and the file is finished: disable steppers?
+  #define SD_FINISHED_STEPPERRELEASE true          // Disable steppers when SD Print is finished
   #define SD_FINISHED_RELEASECOMMAND "M84 X Y Z E" // You might want to keep the z enabled so your bed stays in place.
 
-  #define SDCARD_RATHERRECENTFIRST  //reverse file order of sd card menu display. Its sorted practically after the file system block order.
-  // if a file is deleted, it frees a block. hence, the order is not purely chronological. To still have auto0.g accessible, there is again the option to do that.
-  // using:
+  // Reverse SD sort to show "more recent" files first, according to the card's FAT.
+  // Since the FAT gets out of order with usage, SDCARD_SORT_ALPHA is recommended.
+  #define SDCARD_RATHERRECENTFIRST
+
+  // Add an option in the menu to run all auto#.g files
   //#define MENU_ADDAUTOSTART
 
   /**
   #define SCARA_PRINTABLE_RADIUS (SCARA_LINKAGE_1 + SCARA_LINKAGE_2)
 #endif
 
-// Default mesh area is an area with an inset margin on the print area.
-// Below are the macros that are used to define the borders for the mesh area,
-// made available here for specialized needs, ie dual extruder setup.
-#if ENABLED(MESH_BED_LEVELING)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-  #elif IS_SCARA
-    #define MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define MESH_MIN_X (max(MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define MESH_MIN_Y (max(MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define MESH_MAX_X (min(X_BED_SIZE - (MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define MESH_MAX_Y (min(Y_BED_SIZE - (MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define MESH_MIN_X (max(X_MIN_POS + MESH_INSET, 0))
-      #define MESH_MIN_Y (max(Y_MIN_POS + MESH_INSET, 0))
-      #define MESH_MAX_X (min(X_MAX_POS - (MESH_INSET), X_BED_SIZE))
-      #define MESH_MAX_Y (min(Y_MAX_POS - (MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
-#elif ENABLED(AUTO_BED_LEVELING_UBL)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define UBL_MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-  #elif IS_SCARA
-    #define UBL_MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define UBL_MESH_MIN_X (max(UBL_MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MIN_Y (max(UBL_MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_X (min(X_BED_SIZE - (UBL_MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_Y (min(Y_BED_SIZE - (UBL_MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define UBL_MESH_MIN_X (max(X_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MIN_Y (max(Y_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MAX_X (min(X_MAX_POS - (UBL_MESH_INSET), X_BED_SIZE))
-      #define UBL_MESH_MAX_Y (min(Y_MAX_POS - (UBL_MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
+#if ENABLED(MESH_BED_LEVELING) || ENABLED(AUTO_BED_LEVELING_UBL)
+  // Override the mesh area if the automatic (max) area is too large
+  //#define MESH_MIN_X MESH_INSET
+  //#define MESH_MIN_Y MESH_INSET
+  //#define MESH_MAX_X X_BED_SIZE - (MESH_INSET)
+  //#define MESH_MAX_Y Y_BED_SIZE - (MESH_INSET)
 
-  // If this is defined, the currently active mesh will be saved in the
-  // current slot on M500.
-  #define UBL_SAVE_ACTIVE_ON_M500
+  #if ENABLED(AUTO_BED_LEVELING_UBL)
+    #define UBL_SAVE_ACTIVE_ON_M500 // Save the currently active mesh in the current slot on M500
+  #endif
 #endif
 
 // @section extras

Marlin/example_configurations/Malyan/M150/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/Malyan/M150/Configuration_adv.h

   // Note: This is always disabled for ULTIPANEL (except ELB_FULL_GRAPHIC_CONTROLLER).
   #define SD_DETECT_INVERTED
 
-  #define SD_FINISHED_STEPPERRELEASE true  //if sd support and the file is finished: disable steppers?
+  #define SD_FINISHED_STEPPERRELEASE true          // Disable steppers when SD Print is finished
   #define SD_FINISHED_RELEASECOMMAND "M84 X Y Z E" // You might want to keep the z enabled so your bed stays in place.
 
-  #define SDCARD_RATHERRECENTFIRST  //reverse file order of sd card menu display. Its sorted practically after the file system block order.
-  // if a file is deleted, it frees a block. hence, the order is not purely chronological. To still have auto0.g accessible, there is again the option to do that.
-  // using:
+  // Reverse SD sort to show "more recent" files first, according to the card's FAT.
+  // Since the FAT gets out of order with usage, SDCARD_SORT_ALPHA is recommended.
+  #define SDCARD_RATHERRECENTFIRST
+
+  // Add an option in the menu to run all auto#.g files
   //#define MENU_ADDAUTOSTART
 
   /**
   #define SCARA_PRINTABLE_RADIUS (SCARA_LINKAGE_1 + SCARA_LINKAGE_2)
 #endif
 
-// Default mesh area is an area with an inset margin on the print area.
-// Below are the macros that are used to define the borders for the mesh area,
-// made available here for specialized needs, ie dual extruder setup.
-#if ENABLED(MESH_BED_LEVELING)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-  #elif IS_SCARA
-    #define MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define MESH_MIN_X (max(MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define MESH_MIN_Y (max(MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define MESH_MAX_X (min(X_BED_SIZE - (MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define MESH_MAX_Y (min(Y_BED_SIZE - (MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define MESH_MIN_X (max(X_MIN_POS + MESH_INSET, 0))
-      #define MESH_MIN_Y (max(Y_MIN_POS + MESH_INSET, 0))
-      #define MESH_MAX_X (min(X_MAX_POS - (MESH_INSET), X_BED_SIZE))
-      #define MESH_MAX_Y (min(Y_MAX_POS - (MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
-#elif ENABLED(AUTO_BED_LEVELING_UBL)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define UBL_MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-  #elif IS_SCARA
-    #define UBL_MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define UBL_MESH_MIN_X (max(UBL_MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MIN_Y (max(UBL_MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_X (min(X_BED_SIZE - (UBL_MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_Y (min(Y_BED_SIZE - (UBL_MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define UBL_MESH_MIN_X (max(X_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MIN_Y (max(Y_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MAX_X (min(X_MAX_POS - (UBL_MESH_INSET), X_BED_SIZE))
-      #define UBL_MESH_MAX_Y (min(Y_MAX_POS - (UBL_MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
+#if ENABLED(MESH_BED_LEVELING) || ENABLED(AUTO_BED_LEVELING_UBL)
+  // Override the mesh area if the automatic (max) area is too large
+  //#define MESH_MIN_X MESH_INSET
+  //#define MESH_MIN_Y MESH_INSET
+  //#define MESH_MAX_X X_BED_SIZE - (MESH_INSET)
+  //#define MESH_MAX_Y Y_BED_SIZE - (MESH_INSET)
 
-  // If this is defined, the currently active mesh will be saved in the
-  // current slot on M500.
-  #define UBL_SAVE_ACTIVE_ON_M500
+  #if ENABLED(AUTO_BED_LEVELING_UBL)
+    #define UBL_SAVE_ACTIVE_ON_M500 // Save the currently active mesh in the current slot on M500
+  #endif
 #endif
 
 // @section extras

Marlin/example_configurations/Micromake/C1/basic/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/Micromake/C1/enhanced/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/RepRapWorld/Megatronics/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/RigidBot/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/RigidBot/Configuration_adv.h

   // Note: This is always disabled for ULTIPANEL (except ELB_FULL_GRAPHIC_CONTROLLER).
   #define SD_DETECT_INVERTED
 
-  #define SD_FINISHED_STEPPERRELEASE true  //if sd support and the file is finished: disable steppers?
+  #define SD_FINISHED_STEPPERRELEASE true          // Disable steppers when SD Print is finished
   #define SD_FINISHED_RELEASECOMMAND "M84 X Y Z E" // You might want to keep the z enabled so your bed stays in place.
 
-  #define SDCARD_RATHERRECENTFIRST  //reverse file order of sd card menu display. Its sorted practically after the file system block order.
-  // if a file is deleted, it frees a block. hence, the order is not purely chronological. To still have auto0.g accessible, there is again the option to do that.
-  // using:
+  // Reverse SD sort to show "more recent" files first, according to the card's FAT.
+  // Since the FAT gets out of order with usage, SDCARD_SORT_ALPHA is recommended.
+  #define SDCARD_RATHERRECENTFIRST
+
+  // Add an option in the menu to run all auto#.g files
   //#define MENU_ADDAUTOSTART
 
   /**
   #define SCARA_PRINTABLE_RADIUS (SCARA_LINKAGE_1 + SCARA_LINKAGE_2)
 #endif
 
-// Default mesh area is an area with an inset margin on the print area.
-// Below are the macros that are used to define the borders for the mesh area,
-// made available here for specialized needs, ie dual extruder setup.
-#if ENABLED(MESH_BED_LEVELING)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-  #elif IS_SCARA
-    #define MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define MESH_MIN_X (max(MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define MESH_MIN_Y (max(MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define MESH_MAX_X (min(X_BED_SIZE - (MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define MESH_MAX_Y (min(Y_BED_SIZE - (MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define MESH_MIN_X (max(X_MIN_POS + MESH_INSET, 0))
-      #define MESH_MIN_Y (max(Y_MIN_POS + MESH_INSET, 0))
-      #define MESH_MAX_X (min(X_MAX_POS - (MESH_INSET), X_BED_SIZE))
-      #define MESH_MAX_Y (min(Y_MAX_POS - (MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
-#elif ENABLED(AUTO_BED_LEVELING_UBL)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define UBL_MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-  #elif IS_SCARA
-    #define UBL_MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define UBL_MESH_MIN_X (max(UBL_MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MIN_Y (max(UBL_MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_X (min(X_BED_SIZE - (UBL_MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_Y (min(Y_BED_SIZE - (UBL_MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define UBL_MESH_MIN_X (max(X_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MIN_Y (max(Y_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MAX_X (min(X_MAX_POS - (UBL_MESH_INSET), X_BED_SIZE))
-      #define UBL_MESH_MAX_Y (min(Y_MAX_POS - (UBL_MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
+#if ENABLED(MESH_BED_LEVELING) || ENABLED(AUTO_BED_LEVELING_UBL)
+  // Override the mesh area if the automatic (max) area is too large
+  //#define MESH_MIN_X MESH_INSET
+  //#define MESH_MIN_Y MESH_INSET
+  //#define MESH_MAX_X X_BED_SIZE - (MESH_INSET)
+  //#define MESH_MAX_Y Y_BED_SIZE - (MESH_INSET)
 
-  // If this is defined, the currently active mesh will be saved in the
-  // current slot on M500.
-  #define UBL_SAVE_ACTIVE_ON_M500
+  #if ENABLED(AUTO_BED_LEVELING_UBL)
+    #define UBL_SAVE_ACTIVE_ON_M500 // Save the currently active mesh in the current slot on M500
+  #endif
 #endif
 
 // @section extras

Marlin/example_configurations/SCARA/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/SCARA/Configuration_adv.h

   // Note: This is always disabled for ULTIPANEL (except ELB_FULL_GRAPHIC_CONTROLLER).
   #define SD_DETECT_INVERTED
 
-  #define SD_FINISHED_STEPPERRELEASE true  //if sd support and the file is finished: disable steppers?
+  #define SD_FINISHED_STEPPERRELEASE true          // Disable steppers when SD Print is finished
   #define SD_FINISHED_RELEASECOMMAND "M84 X Y Z E" // You might want to keep the z enabled so your bed stays in place.
 
-  #define SDCARD_RATHERRECENTFIRST  //reverse file order of sd card menu display. Its sorted practically after the file system block order.
-  // if a file is deleted, it frees a block. hence, the order is not purely chronological. To still have auto0.g accessible, there is again the option to do that.
-  // using:
+  // Reverse SD sort to show "more recent" files first, according to the card's FAT.
+  // Since the FAT gets out of order with usage, SDCARD_SORT_ALPHA is recommended.
+  #define SDCARD_RATHERRECENTFIRST
+
+  // Add an option in the menu to run all auto#.g files
   //#define MENU_ADDAUTOSTART
 
   /**
   #define SCARA_PRINTABLE_RADIUS (SCARA_LINKAGE_1 + SCARA_LINKAGE_2)
 #endif
 
-// Default mesh area is an area with an inset margin on the print area.
-// Below are the macros that are used to define the borders for the mesh area,
-// made available here for specialized needs, ie dual extruder setup.
-#if ENABLED(MESH_BED_LEVELING)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-  #elif IS_SCARA
-    #define MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define MESH_MIN_X (max(MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define MESH_MIN_Y (max(MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define MESH_MAX_X (min(X_BED_SIZE - (MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define MESH_MAX_Y (min(Y_BED_SIZE - (MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define MESH_MIN_X (max(X_MIN_POS + MESH_INSET, 0))
-      #define MESH_MIN_Y (max(Y_MIN_POS + MESH_INSET, 0))
-      #define MESH_MAX_X (min(X_MAX_POS - (MESH_INSET), X_BED_SIZE))
-      #define MESH_MAX_Y (min(Y_MAX_POS - (MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
-#elif ENABLED(AUTO_BED_LEVELING_UBL)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define UBL_MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-  #elif IS_SCARA
-    #define UBL_MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define UBL_MESH_MIN_X (max(UBL_MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MIN_Y (max(UBL_MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_X (min(X_BED_SIZE - (UBL_MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_Y (min(Y_BED_SIZE - (UBL_MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define UBL_MESH_MIN_X (max(X_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MIN_Y (max(Y_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MAX_X (min(X_MAX_POS - (UBL_MESH_INSET), X_BED_SIZE))
-      #define UBL_MESH_MAX_Y (min(Y_MAX_POS - (UBL_MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
+#if ENABLED(MESH_BED_LEVELING) || ENABLED(AUTO_BED_LEVELING_UBL)
+  // Override the mesh area if the automatic (max) area is too large
+  //#define MESH_MIN_X MESH_INSET
+  //#define MESH_MIN_Y MESH_INSET
+  //#define MESH_MAX_X X_BED_SIZE - (MESH_INSET)
+  //#define MESH_MAX_Y Y_BED_SIZE - (MESH_INSET)
 
-  // If this is defined, the currently active mesh will be saved in the
-  // current slot on M500.
-  #define UBL_SAVE_ACTIVE_ON_M500
+  #if ENABLED(AUTO_BED_LEVELING_UBL)
+    #define UBL_SAVE_ACTIVE_ON_M500 // Save the currently active mesh in the current slot on M500
+  #endif
 #endif
 
 // @section extras

Marlin/example_configurations/Sanguinololu/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/Sanguinololu/Configuration_adv.h

   // Note: This is always disabled for ULTIPANEL (except ELB_FULL_GRAPHIC_CONTROLLER).
   #define SD_DETECT_INVERTED
 
-  #define SD_FINISHED_STEPPERRELEASE true  //if sd support and the file is finished: disable steppers?
+  #define SD_FINISHED_STEPPERRELEASE true          // Disable steppers when SD Print is finished
   #define SD_FINISHED_RELEASECOMMAND "M84 X Y Z E" // You might want to keep the z enabled so your bed stays in place.
 
-  #define SDCARD_RATHERRECENTFIRST  //reverse file order of sd card menu display. Its sorted practically after the file system block order.
-  // if a file is deleted, it frees a block. hence, the order is not purely chronological. To still have auto0.g accessible, there is again the option to do that.
-  // using:
+  // Reverse SD sort to show "more recent" files first, according to the card's FAT.
+  // Since the FAT gets out of order with usage, SDCARD_SORT_ALPHA is recommended.
+  #define SDCARD_RATHERRECENTFIRST
+
+  // Add an option in the menu to run all auto#.g files
   //#define MENU_ADDAUTOSTART
 
   /**
   #define SCARA_PRINTABLE_RADIUS (SCARA_LINKAGE_1 + SCARA_LINKAGE_2)
 #endif
 
-// Default mesh area is an area with an inset margin on the print area.
-// Below are the macros that are used to define the borders for the mesh area,
-// made available here for specialized needs, ie dual extruder setup.
-#if ENABLED(MESH_BED_LEVELING)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-  #elif IS_SCARA
-    #define MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define MESH_MIN_X (max(MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define MESH_MIN_Y (max(MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define MESH_MAX_X (min(X_BED_SIZE - (MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define MESH_MAX_Y (min(Y_BED_SIZE - (MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define MESH_MIN_X (max(X_MIN_POS + MESH_INSET, 0))
-      #define MESH_MIN_Y (max(Y_MIN_POS + MESH_INSET, 0))
-      #define MESH_MAX_X (min(X_MAX_POS - (MESH_INSET), X_BED_SIZE))
-      #define MESH_MAX_Y (min(Y_MAX_POS - (MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
-#elif ENABLED(AUTO_BED_LEVELING_UBL)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define UBL_MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-  #elif IS_SCARA
-    #define UBL_MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define UBL_MESH_MIN_X (max(UBL_MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MIN_Y (max(UBL_MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_X (min(X_BED_SIZE - (UBL_MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_Y (min(Y_BED_SIZE - (UBL_MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define UBL_MESH_MIN_X (max(X_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MIN_Y (max(Y_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MAX_X (min(X_MAX_POS - (UBL_MESH_INSET), X_BED_SIZE))
-      #define UBL_MESH_MAX_Y (min(Y_MAX_POS - (UBL_MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
+#if ENABLED(MESH_BED_LEVELING) || ENABLED(AUTO_BED_LEVELING_UBL)
+  // Override the mesh area if the automatic (max) area is too large
+  //#define MESH_MIN_X MESH_INSET
+  //#define MESH_MIN_Y MESH_INSET
+  //#define MESH_MAX_X X_BED_SIZE - (MESH_INSET)
+  //#define MESH_MAX_Y Y_BED_SIZE - (MESH_INSET)
 
-  // If this is defined, the currently active mesh will be saved in the
-  // current slot on M500.
-  #define UBL_SAVE_ACTIVE_ON_M500
+  #if ENABLED(AUTO_BED_LEVELING_UBL)
+    #define UBL_SAVE_ACTIVE_ON_M500 // Save the currently active mesh in the current slot on M500
+  #endif
 #endif
 
 // @section extras

Marlin/example_configurations/TinyBoy2/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/TinyBoy2/Configuration_adv.h

   // Note: This is always disabled for ULTIPANEL (except ELB_FULL_GRAPHIC_CONTROLLER).
   #define SD_DETECT_INVERTED
 
-  #define SD_FINISHED_STEPPERRELEASE true  //if sd support and the file is finished: disable steppers?
+  #define SD_FINISHED_STEPPERRELEASE true          // Disable steppers when SD Print is finished
   #define SD_FINISHED_RELEASECOMMAND "M84 X Y Z E" // You might want to keep the z enabled so your bed stays in place.
 
-  #define SDCARD_RATHERRECENTFIRST  //reverse file order of sd card menu display. Its sorted practically after the file system block order.
-  // if a file is deleted, it frees a block. hence, the order is not purely chronological. To still have auto0.g accessible, there is again the option to do that.
-  // using:
+  // Reverse SD sort to show "more recent" files first, according to the card's FAT.
+  // Since the FAT gets out of order with usage, SDCARD_SORT_ALPHA is recommended.
+  #define SDCARD_RATHERRECENTFIRST
+
+  // Add an option in the menu to run all auto#.g files
   //#define MENU_ADDAUTOSTART
 
   /**
   #define SCARA_PRINTABLE_RADIUS (SCARA_LINKAGE_1 + SCARA_LINKAGE_2)
 #endif
 
-// Default mesh area is an area with an inset margin on the print area.
-// Below are the macros that are used to define the borders for the mesh area,
-// made available here for specialized needs, ie dual extruder setup.
-#if ENABLED(MESH_BED_LEVELING)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-  #elif IS_SCARA
-    #define MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define MESH_MIN_X (max(MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define MESH_MIN_Y (max(MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define MESH_MAX_X (min(X_BED_SIZE - (MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define MESH_MAX_Y (min(Y_BED_SIZE - (MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define MESH_MIN_X (max(X_MIN_POS + MESH_INSET, 0))
-      #define MESH_MIN_Y (max(Y_MIN_POS + MESH_INSET, 0))
-      #define MESH_MAX_X (min(X_MAX_POS - (MESH_INSET), X_BED_SIZE))
-      #define MESH_MAX_Y (min(Y_MAX_POS - (MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
-#elif ENABLED(AUTO_BED_LEVELING_UBL)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define UBL_MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-  #elif IS_SCARA
-    #define UBL_MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define UBL_MESH_MIN_X (max(UBL_MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MIN_Y (max(UBL_MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_X (min(X_BED_SIZE - (UBL_MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_Y (min(Y_BED_SIZE - (UBL_MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define UBL_MESH_MIN_X (max(X_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MIN_Y (max(Y_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MAX_X (min(X_MAX_POS - (UBL_MESH_INSET), X_BED_SIZE))
-      #define UBL_MESH_MAX_Y (min(Y_MAX_POS - (UBL_MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
+#if ENABLED(MESH_BED_LEVELING) || ENABLED(AUTO_BED_LEVELING_UBL)
+  // Override the mesh area if the automatic (max) area is too large
+  //#define MESH_MIN_X MESH_INSET
+  //#define MESH_MIN_Y MESH_INSET
+  //#define MESH_MAX_X X_BED_SIZE - (MESH_INSET)
+  //#define MESH_MAX_Y Y_BED_SIZE - (MESH_INSET)
 
-  // If this is defined, the currently active mesh will be saved in the
-  // current slot on M500.
-  #define UBL_SAVE_ACTIVE_ON_M500
+  #if ENABLED(AUTO_BED_LEVELING_UBL)
+    #define UBL_SAVE_ACTIVE_ON_M500 // Save the currently active mesh in the current slot on M500
+  #endif
 #endif
 
 // @section extras

Marlin/example_configurations/Velleman/K8200/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/Velleman/K8200/Configuration_adv.h

   // Note: This is always disabled for ULTIPANEL (except ELB_FULL_GRAPHIC_CONTROLLER).
   #define SD_DETECT_INVERTED
 
-  #define SD_FINISHED_STEPPERRELEASE true  //if sd support and the file is finished: disable steppers?
+  #define SD_FINISHED_STEPPERRELEASE true          // Disable steppers when SD Print is finished
   #define SD_FINISHED_RELEASECOMMAND "M84 X Y Z E" // You might want to keep the z enabled so your bed stays in place.
 
   #define SDCARD_RATHERRECENTFIRST  //reverse file order of sd card menu display. Its sorted practically after the file system block order.
   #define SCARA_PRINTABLE_RADIUS (SCARA_LINKAGE_1 + SCARA_LINKAGE_2)
 #endif
 
-// Default mesh area is an area with an inset margin on the print area.
-// Below are the macros that are used to define the borders for the mesh area,
-// made available here for specialized needs, ie dual extruder setup.
-#if ENABLED(MESH_BED_LEVELING)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-  #elif IS_SCARA
-    #define MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define MESH_MIN_X (max(MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define MESH_MIN_Y (max(MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define MESH_MAX_X (min(X_BED_SIZE - (MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define MESH_MAX_Y (min(Y_BED_SIZE - (MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define MESH_MIN_X (max(X_MIN_POS + MESH_INSET, 0))
-      #define MESH_MIN_Y (max(Y_MIN_POS + MESH_INSET, 0))
-      #define MESH_MAX_X (min(X_MAX_POS - (MESH_INSET), X_BED_SIZE))
-      #define MESH_MAX_Y (min(Y_MAX_POS - (MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
-#elif ENABLED(AUTO_BED_LEVELING_UBL)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define UBL_MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-  #elif IS_SCARA
-    #define UBL_MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define UBL_MESH_MIN_X (max(UBL_MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MIN_Y (max(UBL_MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_X (min(X_BED_SIZE - (UBL_MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_Y (min(Y_BED_SIZE - (UBL_MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define UBL_MESH_MIN_X (max(X_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MIN_Y (max(Y_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MAX_X (min(X_MAX_POS - (UBL_MESH_INSET), X_BED_SIZE))
-      #define UBL_MESH_MAX_Y (min(Y_MAX_POS - (UBL_MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
+#if ENABLED(MESH_BED_LEVELING) || ENABLED(AUTO_BED_LEVELING_UBL)
+  // Override the mesh area if the automatic (max) area is too large
+  //#define MESH_MIN_X MESH_INSET
+  //#define MESH_MIN_Y MESH_INSET
+  //#define MESH_MAX_X X_BED_SIZE - (MESH_INSET)
+  //#define MESH_MAX_Y Y_BED_SIZE - (MESH_INSET)
 
-  // If this is defined, the currently active mesh will be saved in the
-  // current slot on M500.
-  #define UBL_SAVE_ACTIVE_ON_M500
+  #if ENABLED(AUTO_BED_LEVELING_UBL)
+    #define UBL_SAVE_ACTIVE_ON_M500 // Save the currently active mesh in the current slot on M500
+  #endif
 #endif
 
 // @section extras

Marlin/example_configurations/Velleman/K8400/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/Velleman/K8400/Configuration_adv.h

   // Note: This is always disabled for ULTIPANEL (except ELB_FULL_GRAPHIC_CONTROLLER).
   #define SD_DETECT_INVERTED
 
-  #define SD_FINISHED_STEPPERRELEASE true  //if sd support and the file is finished: disable steppers?
+  #define SD_FINISHED_STEPPERRELEASE true          // Disable steppers when SD Print is finished
   #define SD_FINISHED_RELEASECOMMAND "M84 X Y Z E" // You might want to keep the z enabled so your bed stays in place.
 
-  #define SDCARD_RATHERRECENTFIRST  //reverse file order of sd card menu display. Its sorted practically after the file system block order.
-  // if a file is deleted, it frees a block. hence, the order is not purely chronological. To still have auto0.g accessible, there is again the option to do that.
-  // using:
+  // Reverse SD sort to show "more recent" files first, according to the card's FAT.
+  // Since the FAT gets out of order with usage, SDCARD_SORT_ALPHA is recommended.
+  #define SDCARD_RATHERRECENTFIRST
+
+  // Add an option in the menu to run all auto#.g files
   //#define MENU_ADDAUTOSTART
 
   /**
   #define SCARA_PRINTABLE_RADIUS (SCARA_LINKAGE_1 + SCARA_LINKAGE_2)
 #endif
 
-// Default mesh area is an area with an inset margin on the print area.
-// Below are the macros that are used to define the borders for the mesh area,
-// made available here for specialized needs, ie dual extruder setup.
-#if ENABLED(MESH_BED_LEVELING)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-  #elif IS_SCARA
-    #define MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define MESH_MIN_X (max(MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define MESH_MIN_Y (max(MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define MESH_MAX_X (min(X_BED_SIZE - (MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define MESH_MAX_Y (min(Y_BED_SIZE - (MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define MESH_MIN_X (max(X_MIN_POS + MESH_INSET, 0))
-      #define MESH_MIN_Y (max(Y_MIN_POS + MESH_INSET, 0))
-      #define MESH_MAX_X (min(X_MAX_POS - (MESH_INSET), X_BED_SIZE))
-      #define MESH_MAX_Y (min(Y_MAX_POS - (MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
-#elif ENABLED(AUTO_BED_LEVELING_UBL)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define UBL_MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-  #elif IS_SCARA
-    #define UBL_MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define UBL_MESH_MIN_X (max(UBL_MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MIN_Y (max(UBL_MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_X (min(X_BED_SIZE - (UBL_MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_Y (min(Y_BED_SIZE - (UBL_MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define UBL_MESH_MIN_X (max(X_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MIN_Y (max(Y_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MAX_X (min(X_MAX_POS - (UBL_MESH_INSET), X_BED_SIZE))
-      #define UBL_MESH_MAX_Y (min(Y_MAX_POS - (UBL_MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
+#if ENABLED(MESH_BED_LEVELING) || ENABLED(AUTO_BED_LEVELING_UBL)
+  // Override the mesh area if the automatic (max) area is too large
+  //#define MESH_MIN_X MESH_INSET
+  //#define MESH_MIN_Y MESH_INSET
+  //#define MESH_MAX_X X_BED_SIZE - (MESH_INSET)
+  //#define MESH_MAX_Y Y_BED_SIZE - (MESH_INSET)
 
-  // If this is defined, the currently active mesh will be saved in the
-  // current slot on M500.
-  #define UBL_SAVE_ACTIVE_ON_M500
+  #if ENABLED(AUTO_BED_LEVELING_UBL)
+    #define UBL_SAVE_ACTIVE_ON_M500 // Save the currently active mesh in the current slot on M500
+  #endif
 #endif
 
 // @section extras

Marlin/example_configurations/Velleman/K8400/Dual-head/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/adafruit/ST7565/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/delta/FLSUN/auto_calibrate/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/delta/FLSUN/auto_calibrate/Configuration_adv.h

   // Note: This is always disabled for ULTIPANEL (except ELB_FULL_GRAPHIC_CONTROLLER).
   #define SD_DETECT_INVERTED
 
-  #define SD_FINISHED_STEPPERRELEASE true  //if sd support and the file is finished: disable steppers?
+  #define SD_FINISHED_STEPPERRELEASE true          // Disable steppers when SD Print is finished
   #define SD_FINISHED_RELEASECOMMAND "M84 X Y Z E" // You might want to keep the z enabled so your bed stays in place.
 
-  #define SDCARD_RATHERRECENTFIRST  //reverse file order of sd card menu display. Its sorted practically after the file system block order.
-  // if a file is deleted, it frees a block. hence, the order is not purely chronological. To still have auto0.g accessible, there is again the option to do that.
-  // using:
+  // Reverse SD sort to show "more recent" files first, according to the card's FAT.
+  // Since the FAT gets out of order with usage, SDCARD_SORT_ALPHA is recommended.
+  #define SDCARD_RATHERRECENTFIRST
+
+  // Add an option in the menu to run all auto#.g files
   //#define MENU_ADDAUTOSTART
 
   /**
   #define SCARA_PRINTABLE_RADIUS (SCARA_LINKAGE_1 + SCARA_LINKAGE_2)
 #endif
 
-// Default mesh area is an area with an inset margin on the print area.
-// Below are the macros that are used to define the borders for the mesh area,
-// made available here for specialized needs, ie dual extruder setup.
-#if ENABLED(MESH_BED_LEVELING)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-  #elif IS_SCARA
-    #define MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define MESH_MIN_X (max(MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define MESH_MIN_Y (max(MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define MESH_MAX_X (min(X_BED_SIZE - (MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define MESH_MAX_Y (min(Y_BED_SIZE - (MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define MESH_MIN_X (max(X_MIN_POS + MESH_INSET, 0))
-      #define MESH_MIN_Y (max(Y_MIN_POS + MESH_INSET, 0))
-      #define MESH_MAX_X (min(X_MAX_POS - (MESH_INSET), X_BED_SIZE))
-      #define MESH_MAX_Y (min(Y_MAX_POS - (MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
-#elif ENABLED(AUTO_BED_LEVELING_UBL)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define UBL_MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-  #elif IS_SCARA
-    #define UBL_MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define UBL_MESH_MIN_X (max(UBL_MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MIN_Y (max(UBL_MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_X (min(X_BED_SIZE - (UBL_MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_Y (min(Y_BED_SIZE - (UBL_MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define UBL_MESH_MIN_X (max(X_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MIN_Y (max(Y_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MAX_X (min(X_MAX_POS - (UBL_MESH_INSET), X_BED_SIZE))
-      #define UBL_MESH_MAX_Y (min(Y_MAX_POS - (UBL_MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
+#if ENABLED(MESH_BED_LEVELING) || ENABLED(AUTO_BED_LEVELING_UBL)
+  // Override the mesh area if the automatic (max) area is too large
+  //#define MESH_MIN_X MESH_INSET
+  //#define MESH_MIN_Y MESH_INSET
+  //#define MESH_MAX_X X_BED_SIZE - (MESH_INSET)
+  //#define MESH_MAX_Y Y_BED_SIZE - (MESH_INSET)
 
-  // If this is defined, the currently active mesh will be saved in the
-  // current slot on M500.
-  #define UBL_SAVE_ACTIVE_ON_M500
+  #if ENABLED(AUTO_BED_LEVELING_UBL)
+    #define UBL_SAVE_ACTIVE_ON_M500 // Save the currently active mesh in the current slot on M500
+  #endif
 #endif
 
 // @section extras

Marlin/example_configurations/delta/FLSUN/kossel_mini/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/delta/FLSUN/kossel_mini/Configuration_adv.h

   // Note: This is always disabled for ULTIPANEL (except ELB_FULL_GRAPHIC_CONTROLLER).
   #define SD_DETECT_INVERTED
 
-  #define SD_FINISHED_STEPPERRELEASE true  //if sd support and the file is finished: disable steppers?
+  #define SD_FINISHED_STEPPERRELEASE true          // Disable steppers when SD Print is finished
   #define SD_FINISHED_RELEASECOMMAND "M84 X Y Z E" // You might want to keep the z enabled so your bed stays in place.
 
-  #define SDCARD_RATHERRECENTFIRST  //reverse file order of sd card menu display. Its sorted practically after the file system block order.
-  // if a file is deleted, it frees a block. hence, the order is not purely chronological. To still have auto0.g accessible, there is again the option to do that.
-  // using:
+  // Reverse SD sort to show "more recent" files first, according to the card's FAT.
+  // Since the FAT gets out of order with usage, SDCARD_SORT_ALPHA is recommended.
+  #define SDCARD_RATHERRECENTFIRST
+
+  // Add an option in the menu to run all auto#.g files
   //#define MENU_ADDAUTOSTART
 
   /**
   #define SCARA_PRINTABLE_RADIUS (SCARA_LINKAGE_1 + SCARA_LINKAGE_2)
 #endif
 
-// Default mesh area is an area with an inset margin on the print area.
-// Below are the macros that are used to define the borders for the mesh area,
-// made available here for specialized needs, ie dual extruder setup.
-#if ENABLED(MESH_BED_LEVELING)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-  #elif IS_SCARA
-    #define MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define MESH_MIN_X (max(MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define MESH_MIN_Y (max(MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define MESH_MAX_X (min(X_BED_SIZE - (MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define MESH_MAX_Y (min(Y_BED_SIZE - (MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define MESH_MIN_X (max(X_MIN_POS + MESH_INSET, 0))
-      #define MESH_MIN_Y (max(Y_MIN_POS + MESH_INSET, 0))
-      #define MESH_MAX_X (min(X_MAX_POS - (MESH_INSET), X_BED_SIZE))
-      #define MESH_MAX_Y (min(Y_MAX_POS - (MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
-#elif ENABLED(AUTO_BED_LEVELING_UBL)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define UBL_MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-  #elif IS_SCARA
-    #define UBL_MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define UBL_MESH_MIN_X (max(UBL_MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MIN_Y (max(UBL_MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_X (min(X_BED_SIZE - (UBL_MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_Y (min(Y_BED_SIZE - (UBL_MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define UBL_MESH_MIN_X (max(X_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MIN_Y (max(Y_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MAX_X (min(X_MAX_POS - (UBL_MESH_INSET), X_BED_SIZE))
-      #define UBL_MESH_MAX_Y (min(Y_MAX_POS - (UBL_MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
+#if ENABLED(MESH_BED_LEVELING) || ENABLED(AUTO_BED_LEVELING_UBL)
+  // Override the mesh area if the automatic (max) area is too large
+  //#define MESH_MIN_X MESH_INSET
+  //#define MESH_MIN_Y MESH_INSET
+  //#define MESH_MAX_X X_BED_SIZE - (MESH_INSET)
+  //#define MESH_MAX_Y Y_BED_SIZE - (MESH_INSET)
 
-  // If this is defined, the currently active mesh will be saved in the
-  // current slot on M500.
-  #define UBL_SAVE_ACTIVE_ON_M500
+  #if ENABLED(AUTO_BED_LEVELING_UBL)
+    #define UBL_SAVE_ACTIVE_ON_M500 // Save the currently active mesh in the current slot on M500
+  #endif
 #endif
 
 // @section extras

Marlin/example_configurations/delta/generic/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/delta/generic/Configuration_adv.h

   // Note: This is always disabled for ULTIPANEL (except ELB_FULL_GRAPHIC_CONTROLLER).
   #define SD_DETECT_INVERTED
 
-  #define SD_FINISHED_STEPPERRELEASE true  //if sd support and the file is finished: disable steppers?
+  #define SD_FINISHED_STEPPERRELEASE true          // Disable steppers when SD Print is finished
   #define SD_FINISHED_RELEASECOMMAND "M84 X Y Z E" // You might want to keep the z enabled so your bed stays in place.
 
-  #define SDCARD_RATHERRECENTFIRST  //reverse file order of sd card menu display. Its sorted practically after the file system block order.
-  // if a file is deleted, it frees a block. hence, the order is not purely chronological. To still have auto0.g accessible, there is again the option to do that.
-  // using:
+  // Reverse SD sort to show "more recent" files first, according to the card's FAT.
+  // Since the FAT gets out of order with usage, SDCARD_SORT_ALPHA is recommended.
+  #define SDCARD_RATHERRECENTFIRST
+
+  // Add an option in the menu to run all auto#.g files
   //#define MENU_ADDAUTOSTART
 
   /**
   #define SCARA_PRINTABLE_RADIUS (SCARA_LINKAGE_1 + SCARA_LINKAGE_2)
 #endif
 
-// Default mesh area is an area with an inset margin on the print area.
-// Below are the macros that are used to define the borders for the mesh area,
-// made available here for specialized needs, ie dual extruder setup.
-#if ENABLED(MESH_BED_LEVELING)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-  #elif IS_SCARA
-    #define MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define MESH_MIN_X (max(MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define MESH_MIN_Y (max(MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define MESH_MAX_X (min(X_BED_SIZE - (MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define MESH_MAX_Y (min(Y_BED_SIZE - (MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define MESH_MIN_X (max(X_MIN_POS + MESH_INSET, 0))
-      #define MESH_MIN_Y (max(Y_MIN_POS + MESH_INSET, 0))
-      #define MESH_MAX_X (min(X_MAX_POS - (MESH_INSET), X_BED_SIZE))
-      #define MESH_MAX_Y (min(Y_MAX_POS - (MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
-#elif ENABLED(AUTO_BED_LEVELING_UBL)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define UBL_MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-  #elif IS_SCARA
-    #define UBL_MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define UBL_MESH_MIN_X (max(UBL_MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MIN_Y (max(UBL_MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_X (min(X_BED_SIZE - (UBL_MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_Y (min(Y_BED_SIZE - (UBL_MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define UBL_MESH_MIN_X (max(X_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MIN_Y (max(Y_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MAX_X (min(X_MAX_POS - (UBL_MESH_INSET), X_BED_SIZE))
-      #define UBL_MESH_MAX_Y (min(Y_MAX_POS - (UBL_MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
+#if ENABLED(MESH_BED_LEVELING) || ENABLED(AUTO_BED_LEVELING_UBL)
+  // Override the mesh area if the automatic (max) area is too large
+  //#define MESH_MIN_X MESH_INSET
+  //#define MESH_MIN_Y MESH_INSET
+  //#define MESH_MAX_X X_BED_SIZE - (MESH_INSET)
+  //#define MESH_MAX_Y Y_BED_SIZE - (MESH_INSET)
 
-  // If this is defined, the currently active mesh will be saved in the
-  // current slot on M500.
-  #define UBL_SAVE_ACTIVE_ON_M500
+  #if ENABLED(AUTO_BED_LEVELING_UBL)
+    #define UBL_SAVE_ACTIVE_ON_M500 // Save the currently active mesh in the current slot on M500
+  #endif
 #endif
 
 // @section extras

Marlin/example_configurations/delta/kossel_mini/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/delta/kossel_mini/Configuration_adv.h

   // Note: This is always disabled for ULTIPANEL (except ELB_FULL_GRAPHIC_CONTROLLER).
   #define SD_DETECT_INVERTED
 
-  #define SD_FINISHED_STEPPERRELEASE true  //if sd support and the file is finished: disable steppers?
+  #define SD_FINISHED_STEPPERRELEASE true          // Disable steppers when SD Print is finished
   #define SD_FINISHED_RELEASECOMMAND "M84 X Y Z E" // You might want to keep the z enabled so your bed stays in place.
 
-  #define SDCARD_RATHERRECENTFIRST  //reverse file order of sd card menu display. Its sorted practically after the file system block order.
-  // if a file is deleted, it frees a block. hence, the order is not purely chronological. To still have auto0.g accessible, there is again the option to do that.
-  // using:
+  // Reverse SD sort to show "more recent" files first, according to the card's FAT.
+  // Since the FAT gets out of order with usage, SDCARD_SORT_ALPHA is recommended.
+  #define SDCARD_RATHERRECENTFIRST
+
+  // Add an option in the menu to run all auto#.g files
   //#define MENU_ADDAUTOSTART
 
   /**
   #define SCARA_PRINTABLE_RADIUS (SCARA_LINKAGE_1 + SCARA_LINKAGE_2)
 #endif
 
-// Default mesh area is an area with an inset margin on the print area.
-// Below are the macros that are used to define the borders for the mesh area,
-// made available here for specialized needs, ie dual extruder setup.
-#if ENABLED(MESH_BED_LEVELING)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-  #elif IS_SCARA
-    #define MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define MESH_MIN_X (max(MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define MESH_MIN_Y (max(MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define MESH_MAX_X (min(X_BED_SIZE - (MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define MESH_MAX_Y (min(Y_BED_SIZE - (MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define MESH_MIN_X (max(X_MIN_POS + MESH_INSET, 0))
-      #define MESH_MIN_Y (max(Y_MIN_POS + MESH_INSET, 0))
-      #define MESH_MAX_X (min(X_MAX_POS - (MESH_INSET), X_BED_SIZE))
-      #define MESH_MAX_Y (min(Y_MAX_POS - (MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
-#elif ENABLED(AUTO_BED_LEVELING_UBL)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define UBL_MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-  #elif IS_SCARA
-    #define UBL_MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define UBL_MESH_MIN_X (max(UBL_MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MIN_Y (max(UBL_MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_X (min(X_BED_SIZE - (UBL_MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_Y (min(Y_BED_SIZE - (UBL_MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define UBL_MESH_MIN_X (max(X_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MIN_Y (max(Y_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MAX_X (min(X_MAX_POS - (UBL_MESH_INSET), X_BED_SIZE))
-      #define UBL_MESH_MAX_Y (min(Y_MAX_POS - (UBL_MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
+#if ENABLED(MESH_BED_LEVELING) || ENABLED(AUTO_BED_LEVELING_UBL)
+  // Override the mesh area if the automatic (max) area is too large
+  //#define MESH_MIN_X MESH_INSET
+  //#define MESH_MIN_Y MESH_INSET
+  //#define MESH_MAX_X X_BED_SIZE - (MESH_INSET)
+  //#define MESH_MAX_Y Y_BED_SIZE - (MESH_INSET)
 
-  // If this is defined, the currently active mesh will be saved in the
-  // current slot on M500.
-  #define UBL_SAVE_ACTIVE_ON_M500
+  #if ENABLED(AUTO_BED_LEVELING_UBL)
+    #define UBL_SAVE_ACTIVE_ON_M500 // Save the currently active mesh in the current slot on M500
+  #endif
 #endif
 
 // @section extras

Marlin/example_configurations/delta/kossel_pro/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/delta/kossel_pro/Configuration_adv.h

   // Note: This is always disabled for ULTIPANEL (except ELB_FULL_GRAPHIC_CONTROLLER).
   #define SD_DETECT_INVERTED
 
-  #define SD_FINISHED_STEPPERRELEASE true  //if sd support and the file is finished: disable steppers?
+  #define SD_FINISHED_STEPPERRELEASE true          // Disable steppers when SD Print is finished
   #define SD_FINISHED_RELEASECOMMAND "M84 X Y Z E" // You might want to keep the z enabled so your bed stays in place.
 
-  #define SDCARD_RATHERRECENTFIRST  //reverse file order of sd card menu display. Its sorted practically after the file system block order.
-  // if a file is deleted, it frees a block. hence, the order is not purely chronological. To still have auto0.g accessible, there is again the option to do that.
-  // using:
+  // Reverse SD sort to show "more recent" files first, according to the card's FAT.
+  // Since the FAT gets out of order with usage, SDCARD_SORT_ALPHA is recommended.
+  #define SDCARD_RATHERRECENTFIRST
+
+  // Add an option in the menu to run all auto#.g files
   //#define MENU_ADDAUTOSTART
 
   /**
   #define SCARA_PRINTABLE_RADIUS (SCARA_LINKAGE_1 + SCARA_LINKAGE_2)
 #endif
 
-// Default mesh area is an area with an inset margin on the print area.
-// Below are the macros that are used to define the borders for the mesh area,
-// made available here for specialized needs, ie dual extruder setup.
-#if ENABLED(MESH_BED_LEVELING)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-  #elif IS_SCARA
-    #define MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define MESH_MIN_X (max(MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define MESH_MIN_Y (max(MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define MESH_MAX_X (min(X_BED_SIZE - (MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define MESH_MAX_Y (min(Y_BED_SIZE - (MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define MESH_MIN_X (max(X_MIN_POS + MESH_INSET, 0))
-      #define MESH_MIN_Y (max(Y_MIN_POS + MESH_INSET, 0))
-      #define MESH_MAX_X (min(X_MAX_POS - (MESH_INSET), X_BED_SIZE))
-      #define MESH_MAX_Y (min(Y_MAX_POS - (MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
-#elif ENABLED(AUTO_BED_LEVELING_UBL)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define UBL_MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-  #elif IS_SCARA
-    #define UBL_MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define UBL_MESH_MIN_X (max(UBL_MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MIN_Y (max(UBL_MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_X (min(X_BED_SIZE - (UBL_MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_Y (min(Y_BED_SIZE - (UBL_MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define UBL_MESH_MIN_X (max(X_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MIN_Y (max(Y_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MAX_X (min(X_MAX_POS - (UBL_MESH_INSET), X_BED_SIZE))
-      #define UBL_MESH_MAX_Y (min(Y_MAX_POS - (UBL_MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
+#if ENABLED(MESH_BED_LEVELING) || ENABLED(AUTO_BED_LEVELING_UBL)
+  // Override the mesh area if the automatic (max) area is too large
+  //#define MESH_MIN_X MESH_INSET
+  //#define MESH_MIN_Y MESH_INSET
+  //#define MESH_MAX_X X_BED_SIZE - (MESH_INSET)
+  //#define MESH_MAX_Y Y_BED_SIZE - (MESH_INSET)
 
-  // If this is defined, the currently active mesh will be saved in the
-  // current slot on M500.
-  #define UBL_SAVE_ACTIVE_ON_M500
+  #if ENABLED(AUTO_BED_LEVELING_UBL)
+    #define UBL_SAVE_ACTIVE_ON_M500 // Save the currently active mesh in the current slot on M500
+  #endif
 #endif
 
 // @section extras

Marlin/example_configurations/delta/kossel_xl/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/delta/kossel_xl/Configuration_adv.h

   // Note: This is always disabled for ULTIPANEL (except ELB_FULL_GRAPHIC_CONTROLLER).
   #define SD_DETECT_INVERTED
 
-  #define SD_FINISHED_STEPPERRELEASE true  //if sd support and the file is finished: disable steppers?
+  #define SD_FINISHED_STEPPERRELEASE true          // Disable steppers when SD Print is finished
   #define SD_FINISHED_RELEASECOMMAND "M84 X Y Z E" // You might want to keep the z enabled so your bed stays in place.
 
-  #define SDCARD_RATHERRECENTFIRST  //reverse file order of sd card menu display. Its sorted practically after the file system block order.
-  // if a file is deleted, it frees a block. hence, the order is not purely chronological. To still have auto0.g accessible, there is again the option to do that.
-  // using:
+  // Reverse SD sort to show "more recent" files first, according to the card's FAT.
+  // Since the FAT gets out of order with usage, SDCARD_SORT_ALPHA is recommended.
+  #define SDCARD_RATHERRECENTFIRST
+
+  // Add an option in the menu to run all auto#.g files
   //#define MENU_ADDAUTOSTART
 
   /**
   #define SCARA_PRINTABLE_RADIUS (SCARA_LINKAGE_1 + SCARA_LINKAGE_2)
 #endif
 
-// Default mesh area is an area with an inset margin on the print area.
-// Below are the macros that are used to define the borders for the mesh area,
-// made available here for specialized needs, ie dual extruder setup.
-#if ENABLED(MESH_BED_LEVELING)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-  #elif IS_SCARA
-    #define MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define MESH_MIN_X (max(MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define MESH_MIN_Y (max(MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define MESH_MAX_X (min(X_BED_SIZE - (MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define MESH_MAX_Y (min(Y_BED_SIZE - (MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define MESH_MIN_X (max(X_MIN_POS + MESH_INSET, 0))
-      #define MESH_MIN_Y (max(Y_MIN_POS + MESH_INSET, 0))
-      #define MESH_MAX_X (min(X_MAX_POS - (MESH_INSET), X_BED_SIZE))
-      #define MESH_MAX_Y (min(Y_MAX_POS - (MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
-#elif ENABLED(AUTO_BED_LEVELING_UBL)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define UBL_MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-  #elif IS_SCARA
-    #define UBL_MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define UBL_MESH_MIN_X (max(UBL_MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MIN_Y (max(UBL_MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_X (min(X_BED_SIZE - (UBL_MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_Y (min(Y_BED_SIZE - (UBL_MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define UBL_MESH_MIN_X (max(X_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MIN_Y (max(Y_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MAX_X (min(X_MAX_POS - (UBL_MESH_INSET), X_BED_SIZE))
-      #define UBL_MESH_MAX_Y (min(Y_MAX_POS - (UBL_MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
+#if ENABLED(MESH_BED_LEVELING) || ENABLED(AUTO_BED_LEVELING_UBL)
+  // Override the mesh area if the automatic (max) area is too large
+  //#define MESH_MIN_X MESH_INSET
+  //#define MESH_MIN_Y MESH_INSET
+  //#define MESH_MAX_X X_BED_SIZE - (MESH_INSET)
+  //#define MESH_MAX_Y Y_BED_SIZE - (MESH_INSET)
 
-  // If this is defined, the currently active mesh will be saved in the
-  // current slot on M500.
-  #define UBL_SAVE_ACTIVE_ON_M500
+  #if ENABLED(AUTO_BED_LEVELING_UBL)
+    #define UBL_SAVE_ACTIVE_ON_M500 // Save the currently active mesh in the current slot on M500
+  #endif
 #endif
 
 // @section extras

Marlin/example_configurations/gCreate/gMax1.5+/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 45         // Mesh inset margin on print area
+  #define MESH_INSET 45             // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/gCreate/gMax1.5+/Configuration_adv.h

   // Note: This is always disabled for ULTIPANEL (except ELB_FULL_GRAPHIC_CONTROLLER).
   #define SD_DETECT_INVERTED
 
-  #define SD_FINISHED_STEPPERRELEASE true  //if sd support and the file is finished: disable steppers?
+  #define SD_FINISHED_STEPPERRELEASE true          // Disable steppers when SD Print is finished
   #define SD_FINISHED_RELEASECOMMAND "M84 X Y Z E" // You might want to keep the z enabled so your bed stays in place.
 
-  #define SDCARD_RATHERRECENTFIRST  //reverse file order of sd card menu display. Its sorted practically after the file system block order.
-  // if a file is deleted, it frees a block. hence, the order is not purely chronological. To still have auto0.g accessible, there is again the option to do that.
-  // using:
+  // Reverse SD sort to show "more recent" files first, according to the card's FAT.
+  // Since the FAT gets out of order with usage, SDCARD_SORT_ALPHA is recommended.
+  #define SDCARD_RATHERRECENTFIRST
+
+  // Add an option in the menu to run all auto#.g files
   //#define MENU_ADDAUTOSTART
 
   /**
   #define SCARA_PRINTABLE_RADIUS (SCARA_LINKAGE_1 + SCARA_LINKAGE_2)
 #endif
 
-// Default mesh area is an area with an inset margin on the print area.
-// Below are the macros that are used to define the borders for the mesh area,
-// made available here for specialized needs, ie dual extruder setup.
-#if ENABLED(MESH_BED_LEVELING)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-  #elif IS_SCARA
-    #define MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define MESH_MIN_X (max(MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define MESH_MIN_Y (max(MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define MESH_MAX_X (min(X_BED_SIZE - (MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define MESH_MAX_Y (min(Y_BED_SIZE - (MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define MESH_MIN_X (max(X_MIN_POS + MESH_INSET, 0))
-      #define MESH_MIN_Y (max(Y_MIN_POS + MESH_INSET, 0))
-      #define MESH_MAX_X (min(X_MAX_POS - (MESH_INSET), X_BED_SIZE))
-      #define MESH_MAX_Y (min(Y_MAX_POS - (MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
-#elif ENABLED(AUTO_BED_LEVELING_UBL)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define UBL_MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-  #elif IS_SCARA
-    #define UBL_MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define UBL_MESH_MIN_X (max(UBL_MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MIN_Y (max(UBL_MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_X (min(X_BED_SIZE - (UBL_MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_Y (min(Y_BED_SIZE - (UBL_MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define UBL_MESH_MIN_X (max(X_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MIN_Y (max(Y_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MAX_X (min(X_MAX_POS - (UBL_MESH_INSET), X_BED_SIZE))
-      #define UBL_MESH_MAX_Y (min(Y_MAX_POS - (UBL_MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
+#if ENABLED(MESH_BED_LEVELING) || ENABLED(AUTO_BED_LEVELING_UBL)
+  // Override the mesh area if the automatic (max) area is too large
+  //#define MESH_MIN_X MESH_INSET
+  //#define MESH_MIN_Y MESH_INSET
+  //#define MESH_MAX_X X_BED_SIZE - (MESH_INSET)
+  //#define MESH_MAX_Y Y_BED_SIZE - (MESH_INSET)
 
-  // If this is defined, the currently active mesh will be saved in the
-  // current slot on M500.
-  #define UBL_SAVE_ACTIVE_ON_M500
+  #if ENABLED(AUTO_BED_LEVELING_UBL)
+    #define UBL_SAVE_ACTIVE_ON_M500 // Save the currently active mesh in the current slot on M500
+  #endif
 #endif
 
 // @section extras

Marlin/example_configurations/makibox/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/makibox/Configuration_adv.h

   // Note: This is always disabled for ULTIPANEL (except ELB_FULL_GRAPHIC_CONTROLLER).
   //#define SD_DETECT_INVERTED
 
-  #define SD_FINISHED_STEPPERRELEASE true  //if sd support and the file is finished: disable steppers?
+  #define SD_FINISHED_STEPPERRELEASE true          // Disable steppers when SD Print is finished
   #define SD_FINISHED_RELEASECOMMAND "M84 X Y Z E" // You might want to keep the z enabled so your bed stays in place.
 
-  #define SDCARD_RATHERRECENTFIRST  //reverse file order of sd card menu display. Its sorted practically after the file system block order.
-  // if a file is deleted, it frees a block. hence, the order is not purely chronological. To still have auto0.g accessible, there is again the option to do that.
-  // using:
+  // Reverse SD sort to show "more recent" files first, according to the card's FAT.
+  // Since the FAT gets out of order with usage, SDCARD_SORT_ALPHA is recommended.
+  #define SDCARD_RATHERRECENTFIRST
+
+  // Add an option in the menu to run all auto#.g files
   //#define MENU_ADDAUTOSTART
 
   /**
   #define SCARA_PRINTABLE_RADIUS (SCARA_LINKAGE_1 + SCARA_LINKAGE_2)
 #endif
 
-// Default mesh area is an area with an inset margin on the print area.
-// Below are the macros that are used to define the borders for the mesh area,
-// made available here for specialized needs, ie dual extruder setup.
-#if ENABLED(MESH_BED_LEVELING)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-  #elif IS_SCARA
-    #define MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define MESH_MIN_X (max(MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define MESH_MIN_Y (max(MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define MESH_MAX_X (min(X_BED_SIZE - (MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define MESH_MAX_Y (min(Y_BED_SIZE - (MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define MESH_MIN_X (max(X_MIN_POS + MESH_INSET, 0))
-      #define MESH_MIN_Y (max(Y_MIN_POS + MESH_INSET, 0))
-      #define MESH_MAX_X (min(X_MAX_POS - (MESH_INSET), X_BED_SIZE))
-      #define MESH_MAX_Y (min(Y_MAX_POS - (MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
-#elif ENABLED(AUTO_BED_LEVELING_UBL)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define UBL_MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-  #elif IS_SCARA
-    #define UBL_MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define UBL_MESH_MIN_X (max(UBL_MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MIN_Y (max(UBL_MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_X (min(X_BED_SIZE - (UBL_MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_Y (min(Y_BED_SIZE - (UBL_MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define UBL_MESH_MIN_X (max(X_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MIN_Y (max(Y_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MAX_X (min(X_MAX_POS - (UBL_MESH_INSET), X_BED_SIZE))
-      #define UBL_MESH_MAX_Y (min(Y_MAX_POS - (UBL_MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
+#if ENABLED(MESH_BED_LEVELING) || ENABLED(AUTO_BED_LEVELING_UBL)
+  // Override the mesh area if the automatic (max) area is too large
+  //#define MESH_MIN_X MESH_INSET
+  //#define MESH_MIN_Y MESH_INSET
+  //#define MESH_MAX_X X_BED_SIZE - (MESH_INSET)
+  //#define MESH_MAX_Y Y_BED_SIZE - (MESH_INSET)
 
-  // If this is defined, the currently active mesh will be saved in the
-  // current slot on M500.
-  #define UBL_SAVE_ACTIVE_ON_M500
+  #if ENABLED(AUTO_BED_LEVELING_UBL)
+    #define UBL_SAVE_ACTIVE_ON_M500 // Save the currently active mesh in the current slot on M500
+  #endif
 #endif
 
 // @section extras

Marlin/example_configurations/tvrrug/Round2/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/tvrrug/Round2/Configuration_adv.h

   // Note: This is always disabled for ULTIPANEL (except ELB_FULL_GRAPHIC_CONTROLLER).
   #define SD_DETECT_INVERTED
 
-  #define SD_FINISHED_STEPPERRELEASE true  //if sd support and the file is finished: disable steppers?
+  #define SD_FINISHED_STEPPERRELEASE true          // Disable steppers when SD Print is finished
   #define SD_FINISHED_RELEASECOMMAND "M84 X Y Z E" // You might want to keep the z enabled so your bed stays in place.
 
-  #define SDCARD_RATHERRECENTFIRST  //reverse file order of sd card menu display. Its sorted practically after the file system block order.
-  // if a file is deleted, it frees a block. hence, the order is not purely chronological. To still have auto0.g accessible, there is again the option to do that.
-  // using:
+  // Reverse SD sort to show "more recent" files first, according to the card's FAT.
+  // Since the FAT gets out of order with usage, SDCARD_SORT_ALPHA is recommended.
+  #define SDCARD_RATHERRECENTFIRST
+
+  // Add an option in the menu to run all auto#.g files
   //#define MENU_ADDAUTOSTART
 
   /**
   #define SCARA_PRINTABLE_RADIUS (SCARA_LINKAGE_1 + SCARA_LINKAGE_2)
 #endif
 
-// Default mesh area is an area with an inset margin on the print area.
-// Below are the macros that are used to define the borders for the mesh area,
-// made available here for specialized needs, ie dual extruder setup.
-#if ENABLED(MESH_BED_LEVELING)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-  #elif IS_SCARA
-    #define MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define MESH_MIN_X (max(MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define MESH_MIN_Y (max(MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define MESH_MAX_X (min(X_BED_SIZE - (MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define MESH_MAX_Y (min(Y_BED_SIZE - (MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define MESH_MIN_X (max(X_MIN_POS + MESH_INSET, 0))
-      #define MESH_MIN_Y (max(Y_MIN_POS + MESH_INSET, 0))
-      #define MESH_MAX_X (min(X_MAX_POS - (MESH_INSET), X_BED_SIZE))
-      #define MESH_MAX_Y (min(Y_MAX_POS - (MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
-#elif ENABLED(AUTO_BED_LEVELING_UBL)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define UBL_MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-  #elif IS_SCARA
-    #define UBL_MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define UBL_MESH_MIN_X (max(UBL_MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MIN_Y (max(UBL_MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_X (min(X_BED_SIZE - (UBL_MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_Y (min(Y_BED_SIZE - (UBL_MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define UBL_MESH_MIN_X (max(X_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MIN_Y (max(Y_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MAX_X (min(X_MAX_POS - (UBL_MESH_INSET), X_BED_SIZE))
-      #define UBL_MESH_MAX_Y (min(Y_MAX_POS - (UBL_MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
+#if ENABLED(MESH_BED_LEVELING) || ENABLED(AUTO_BED_LEVELING_UBL)
+  // Override the mesh area if the automatic (max) area is too large
+  //#define MESH_MIN_X MESH_INSET
+  //#define MESH_MIN_Y MESH_INSET
+  //#define MESH_MAX_X X_BED_SIZE - (MESH_INSET)
+  //#define MESH_MAX_Y Y_BED_SIZE - (MESH_INSET)
 
-  // If this is defined, the currently active mesh will be saved in the
-  // current slot on M500.
-  #define UBL_SAVE_ACTIVE_ON_M500
+  #if ENABLED(AUTO_BED_LEVELING_UBL)
+    #define UBL_SAVE_ACTIVE_ON_M500 // Save the currently active mesh in the current slot on M500
+  #endif
 #endif
 
 // @section extras

Marlin/example_configurations/wt150/Configuration.h

   //========================= Unified Bed Leveling ============================
   //===========================================================================
 
-  #define UBL_MESH_INSET 1          // Mesh inset margin on print area
+  #define MESH_INSET 1              // Mesh inset margin on print area
   #define GRID_MAX_POINTS_X 10      // Don't use more than 15 points per axis, implementation limited.
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 

Marlin/example_configurations/wt150/Configuration_adv.h

   // Note: This is always disabled for ULTIPANEL (except ELB_FULL_GRAPHIC_CONTROLLER).
   #define SD_DETECT_INVERTED
 
-  #define SD_FINISHED_STEPPERRELEASE true  //if sd support and the file is finished: disable steppers?
+  #define SD_FINISHED_STEPPERRELEASE true          // Disable steppers when SD Print is finished
   #define SD_FINISHED_RELEASECOMMAND "M84 X Y Z E" // You might want to keep the z enabled so your bed stays in place.
 
-  #define SDCARD_RATHERRECENTFIRST  //reverse file order of sd card menu display. Its sorted practically after the file system block order.
-  // if a file is deleted, it frees a block. hence, the order is not purely chronological. To still have auto0.g accessible, there is again the option to do that.
-  // using:
+  // Reverse SD sort to show "more recent" files first, according to the card's FAT.
+  // Since the FAT gets out of order with usage, SDCARD_SORT_ALPHA is recommended.
+  #define SDCARD_RATHERRECENTFIRST
+
+  // Add an option in the menu to run all auto#.g files
   //#define MENU_ADDAUTOSTART
 
   /**
   #define SCARA_PRINTABLE_RADIUS (SCARA_LINKAGE_1 + SCARA_LINKAGE_2)
 #endif
 
-// Default mesh area is an area with an inset margin on the print area.
-// Below are the macros that are used to define the borders for the mesh area,
-// made available here for specialized needs, ie dual extruder setup.
-#if ENABLED(MESH_BED_LEVELING)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (MESH_INSET))
-  #elif IS_SCARA
-    #define MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + MESH_INSET)
-    #define MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-    #define MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define MESH_MIN_X (max(MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define MESH_MIN_Y (max(MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define MESH_MAX_X (min(X_BED_SIZE - (MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define MESH_MAX_Y (min(Y_BED_SIZE - (MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define MESH_MIN_X (max(X_MIN_POS + MESH_INSET, 0))
-      #define MESH_MIN_Y (max(Y_MIN_POS + MESH_INSET, 0))
-      #define MESH_MAX_X (min(X_MAX_POS - (MESH_INSET), X_BED_SIZE))
-      #define MESH_MAX_Y (min(Y_MAX_POS - (MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
-#elif ENABLED(AUTO_BED_LEVELING_UBL)
-  #if ENABLED(DELTA)
-    // Probing points may be verified at compile time within the radius
-    // using static_assert(HYPOT2(X2-X1,Y2-Y1)<=sq(DELTA_PRINTABLE_RADIUS),"bad probe point!")
-    // so that may be added to SanityCheck.h in the future.
-    #define UBL_MESH_MIN_X (X_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (DELTA_PROBEABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  DELTA_PROBEABLE_RADIUS - (UBL_MESH_INSET))
-  #elif IS_SCARA
-    #define UBL_MESH_MIN_X (X_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MIN_Y (Y_CENTER - (SCARA_PRINTABLE_RADIUS) + UBL_MESH_INSET)
-    #define UBL_MESH_MAX_X (X_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-    #define UBL_MESH_MAX_Y (Y_CENTER +  SCARA_PRINTABLE_RADIUS - (UBL_MESH_INSET))
-  #else
-    // Boundaries for Cartesian probing based on set limits
-    #if ENABLED(BED_CENTER_AT_0_0)
-      #define UBL_MESH_MIN_X (max(UBL_MESH_INSET, 0) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MIN_Y (max(UBL_MESH_INSET, 0) - (Y_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_X (min(X_BED_SIZE - (UBL_MESH_INSET), X_BED_SIZE) - (X_BED_SIZE) / 2)
-      #define UBL_MESH_MAX_Y (min(Y_BED_SIZE - (UBL_MESH_INSET), Y_BED_SIZE) - (Y_BED_SIZE) / 2)
-    #else
-      #define UBL_MESH_MIN_X (max(X_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MIN_Y (max(Y_MIN_POS + UBL_MESH_INSET, 0))
-      #define UBL_MESH_MAX_X (min(X_MAX_POS - (UBL_MESH_INSET), X_BED_SIZE))
-      #define UBL_MESH_MAX_Y (min(Y_MAX_POS - (UBL_MESH_INSET), Y_BED_SIZE))
-    #endif
-  #endif
+#if ENABLED(MESH_BED_LEVELING) || ENABLED(AUTO_BED_LEVELING_UBL)
+  // Override the mesh area if the automatic (max) area is too large
+  //#define MESH_MIN_X MESH_INSET
+  //#define MESH_MIN_Y MESH_INSET
+  //#define MESH_MAX_X X_BED_SIZE - (MESH_INSET)
+  //#define MESH_MAX_Y Y_BED_SIZE - (MESH_INSET)
 
-  // If this is defined, the currently active mesh will be saved in the
-  // current slot on M500.
-  #define UBL_SAVE_ACTIVE_ON_M500
+  #if ENABLED(AUTO_BED_LEVELING_UBL)
+    #define UBL_SAVE_ACTIVE_ON_M500 // Save the currently active mesh in the current slot on M500
+  #endif
 #endif
 
 // @section extras

Marlin/ubl.cpp

       SERIAL_ECHO_SP(spaces + 3);
       serial_echo_xy(GRID_MAX_POINTS_X - 1, GRID_MAX_POINTS_Y - 1);
       SERIAL_EOL();
-      serial_echo_xy(UBL_MESH_MIN_X, UBL_MESH_MAX_Y);
+      serial_echo_xy(MESH_MIN_X, MESH_MAX_Y);
       SERIAL_ECHO_SP(spaces);
-      serial_echo_xy(UBL_MESH_MAX_X, UBL_MESH_MAX_Y);
+      serial_echo_xy(MESH_MAX_X, MESH_MAX_Y);
       SERIAL_EOL();
     }
     else {
     }
 
     if (map_type == 0) {
-      serial_echo_xy(UBL_MESH_MIN_X, UBL_MESH_MIN_Y);
+      serial_echo_xy(MESH_MIN_X, MESH_MIN_Y);
       SERIAL_ECHO_SP(spaces + 4);
-      serial_echo_xy(UBL_MESH_MAX_X, UBL_MESH_MIN_Y);
+      serial_echo_xy(MESH_MAX_X, MESH_MIN_Y);
       SERIAL_EOL();
       serial_echo_xy(0, 0);
       SERIAL_ECHO_SP(spaces + 5);

Marlin/ubl.h

     void lcd_quick_feedback();
   #endif
 
-  #define MESH_X_DIST (float(UBL_MESH_MAX_X - (UBL_MESH_MIN_X)) / float(GRID_MAX_POINTS_X - 1))
-  #define MESH_Y_DIST (float(UBL_MESH_MAX_Y - (UBL_MESH_MIN_Y)) / float(GRID_MAX_POINTS_Y - 1))
+  #define MESH_X_DIST (float(MESH_MAX_X - (MESH_MIN_X)) / float(GRID_MAX_POINTS_X - 1))
+  #define MESH_Y_DIST (float(MESH_MAX_Y - (MESH_MIN_Y)) / float(GRID_MAX_POINTS_Y - 1))
 
   class unified_bed_leveling {
     private:
       // 15 is the maximum nubmer of grid points supported + 1 safety margin for now,
       // until determinism prevails
       constexpr static float _mesh_index_to_xpos[16] PROGMEM = {
-                                UBL_MESH_MIN_X +  0 * (MESH_X_DIST), UBL_MESH_MIN_X +  1 * (MESH_X_DIST),
-                                UBL_MESH_MIN_X +  2 * (MESH_X_DIST), UBL_MESH_MIN_X +  3 * (MESH_X_DIST),
-                                UBL_MESH_MIN_X +  4 * (MESH_X_DIST), UBL_MESH_MIN_X +  5 * (MESH_X_DIST),
-                                UBL_MESH_MIN_X +  6 * (MESH_X_DIST), UBL_MESH_MIN_X +  7 * (MESH_X_DIST),
-                                UBL_MESH_MIN_X +  8 * (MESH_X_DIST), UBL_MESH_MIN_X +  9 * (MESH_X_DIST),
-                                UBL_MESH_MIN_X + 10 * (MESH_X_DIST), UBL_MESH_MIN_X + 11 * (MESH_X_DIST),
-                                UBL_MESH_MIN_X + 12 * (MESH_X_DIST), UBL_MESH_MIN_X + 13 * (MESH_X_DIST),
-                                UBL_MESH_MIN_X + 14 * (MESH_X_DIST), UBL_MESH_MIN_X + 15 * (MESH_X_DIST)
+                                MESH_MIN_X +  0 * (MESH_X_DIST), MESH_MIN_X +  1 * (MESH_X_DIST),
+                                MESH_MIN_X +  2 * (MESH_X_DIST), MESH_MIN_X +  3 * (MESH_X_DIST),
+                                MESH_MIN_X +  4 * (MESH_X_DIST), MESH_MIN_X +  5 * (MESH_X_DIST),
+                                MESH_MIN_X +  6 * (MESH_X_DIST), MESH_MIN_X +  7 * (MESH_X_DIST),
+                                MESH_MIN_X +  8 * (MESH_X_DIST), MESH_MIN_X +  9 * (MESH_X_DIST),
+                                MESH_MIN_X + 10 * (MESH_X_DIST), MESH_MIN_X + 11 * (MESH_X_DIST),
+                                MESH_MIN_X + 12 * (MESH_X_DIST), MESH_MIN_X + 13 * (MESH_X_DIST),
+                                MESH_MIN_X + 14 * (MESH_X_DIST), MESH_MIN_X + 15 * (MESH_X_DIST)
                               };
 
       constexpr static float _mesh_index_to_ypos[16] PROGMEM = {
-                                UBL_MESH_MIN_Y +  0 * (MESH_Y_DIST), UBL_MESH_MIN_Y +  1 * (MESH_Y_DIST),
-                                UBL_MESH_MIN_Y +  2 * (MESH_Y_DIST), UBL_MESH_MIN_Y +  3 * (MESH_Y_DIST),
-                                UBL_MESH_MIN_Y +  4 * (MESH_Y_DIST), UBL_MESH_MIN_Y +  5 * (MESH_Y_DIST),
-                                UBL_MESH_MIN_Y +  6 * (MESH_Y_DIST), UBL_MESH_MIN_Y +  7 * (MESH_Y_DIST),
-                                UBL_MESH_MIN_Y +  8 * (MESH_Y_DIST), UBL_MESH_MIN_Y +  9 * (MESH_Y_DIST),
-                                UBL_MESH_MIN_Y + 10 * (MESH_Y_DIST), UBL_MESH_MIN_Y + 11 * (MESH_Y_DIST),
-                                UBL_MESH_MIN_Y + 12 * (MESH_Y_DIST), UBL_MESH_MIN_Y + 13 * (MESH_Y_DIST),
-                                UBL_MESH_MIN_Y + 14 * (MESH_Y_DIST), UBL_MESH_MIN_Y + 15 * (MESH_Y_DIST)
+                                MESH_MIN_Y +  0 * (MESH_Y_DIST), MESH_MIN_Y +  1 * (MESH_Y_DIST),
+                                MESH_MIN_Y +  2 * (MESH_Y_DIST), MESH_MIN_Y +  3 * (MESH_Y_DIST),
+                                MESH_MIN_Y +  4 * (MESH_Y_DIST), MESH_MIN_Y +  5 * (MESH_Y_DIST),
+                                MESH_MIN_Y +  6 * (MESH_Y_DIST), MESH_MIN_Y +  7 * (MESH_Y_DIST),
+                                MESH_MIN_Y +  8 * (MESH_Y_DIST), MESH_MIN_Y +  9 * (MESH_Y_DIST),
+                                MESH_MIN_Y + 10 * (MESH_Y_DIST), MESH_MIN_Y + 11 * (MESH_Y_DIST),
+                                MESH_MIN_Y + 12 * (MESH_Y_DIST), MESH_MIN_Y + 13 * (MESH_Y_DIST),
+                                MESH_MIN_Y + 14 * (MESH_Y_DIST), MESH_MIN_Y + 15 * (MESH_Y_DIST)
                               };
 
       static bool g26_debug_flag, has_control_of_lcd_panel;
       FORCE_INLINE static void set_z(const int8_t px, const int8_t py, const float &z) { z_values[px][py] = z; }
 
       static int8_t get_cell_index_x(const float &x) {
-        const int8_t cx = (x - (UBL_MESH_MIN_X)) * (1.0 / (MESH_X_DIST));
+        const int8_t cx = (x - (MESH_MIN_X)) * (1.0 / (MESH_X_DIST));
         return constrain(cx, 0, (GRID_MAX_POINTS_X) - 1);   // -1 is appropriate if we want all movement to the X_MAX
       }                                                     // position. But with this defined this way, it is possible
                                                             // to extrapolate off of this point even further out. Probably
                                                             // that is OK because something else should be keeping that from
                                                             // happening and should not be worried about at this level.
       static int8_t get_cell_index_y(const float &y) {
-        const int8_t cy = (y - (UBL_MESH_MIN_Y)) * (1.0 / (MESH_Y_DIST));
+        const int8_t cy = (y - (MESH_MIN_Y)) * (1.0 / (MESH_Y_DIST));
         return constrain(cy, 0, (GRID_MAX_POINTS_Y) - 1);   // -1 is appropriate if we want all movement to the Y_MAX
       }                                                     // position. But with this defined this way, it is possible
                                                             // to extrapolate off of this point even further out. Probably
                                                             // happening and should not be worried about at this level.
 
       static int8_t find_closest_x_index(const float &x) {
-        const int8_t px = (x - (UBL_MESH_MIN_X) + (MESH_X_DIST) * 0.5) * (1.0 / (MESH_X_DIST));
+        const int8_t px = (x - (MESH_MIN_X) + (MESH_X_DIST) * 0.5) * (1.0 / (MESH_X_DIST));
         return WITHIN(px, 0, GRID_MAX_POINTS_X - 1) ? px : -1;
       }
 
       static int8_t find_closest_y_index(const float &y) {
-        const int8_t py = (y - (UBL_MESH_MIN_Y) + (MESH_Y_DIST) * 0.5) * (1.0 / (MESH_Y_DIST));
+        const int8_t py = (y - (MESH_MIN_Y) + (MESH_Y_DIST) * 0.5) * (1.0 / (MESH_Y_DIST));
         return WITHIN(py, 0, GRID_MAX_POINTS_Y - 1) ? py : -1;
       }
 
       }
 
       FORCE_INLINE static float mesh_index_to_xpos(const uint8_t i) {
-        return i < GRID_MAX_POINTS_X ? pgm_read_float(&_mesh_index_to_xpos[i]) : UBL_MESH_MIN_X + i * (MESH_X_DIST);
+        return i < GRID_MAX_POINTS_X ? pgm_read_float(&_mesh_index_to_xpos[i]) : MESH_MIN_X + i * (MESH_X_DIST);
       }
 
       FORCE_INLINE static float mesh_index_to_ypos(const uint8_t i) {
-        return i < GRID_MAX_POINTS_Y ? pgm_read_float(&_mesh_index_to_ypos[i]) : UBL_MESH_MIN_Y + i * (MESH_Y_DIST);
+        return i < GRID_MAX_POINTS_Y ? pgm_read_float(&_mesh_index_to_ypos[i]) : MESH_MIN_Y + i * (MESH_Y_DIST);
       }
 
       static bool prepare_segmented_line_to(const float ltarget[XYZE], const float &feedrate);

Marlin/ubl_G29.cpp

           z2 -= get_z_correction(LOGICAL_X_POSITION(UBL_PROBE_PT_2_X), LOGICAL_Y_POSITION(UBL_PROBE_PT_2_Y)) /* + zprobe_zoffset */ ;
           z3 -= get_z_correction(LOGICAL_X_POSITION(UBL_PROBE_PT_3_X), LOGICAL_Y_POSITION(UBL_PROBE_PT_3_Y)) /* + zprobe_zoffset */ ;
 
-          do_blocking_move_to_xy(0.5 * (UBL_MESH_MAX_X - (UBL_MESH_MIN_X)), 0.5 * (UBL_MESH_MAX_Y - (UBL_MESH_MIN_Y)));
+          do_blocking_move_to_xy(0.5 * (MESH_MAX_X - (MESH_MIN_X)), 0.5 * (MESH_MAX_Y - (MESH_MIN_Y)));
           tilt_mesh_based_on_3pts(z1, z2, z3);
           restore_ubl_active_state_and_leave();
         }
       restore_ubl_active_state_and_leave();
 
       do_blocking_move_to_xy(
-        constrain(lx - (X_PROBE_OFFSET_FROM_EXTRUDER), UBL_MESH_MIN_X, UBL_MESH_MAX_X),
-        constrain(ly - (Y_PROBE_OFFSET_FROM_EXTRUDER), UBL_MESH_MIN_Y, UBL_MESH_MAX_Y)
+        constrain(lx - (X_PROBE_OFFSET_FROM_EXTRUDER), MESH_MIN_X, MESH_MAX_X),
+        constrain(ly - (Y_PROBE_OFFSET_FROM_EXTRUDER), MESH_MIN_Y, MESH_MAX_Y)
       );
     }
 
       save_ubl_active_state_and_disable();   // Disable bed level correction for probing
 
       do_blocking_move_to_z(in_height);
-      do_blocking_move_to_xy(0.5 * (UBL_MESH_MAX_X - (UBL_MESH_MIN_X)), 0.5 * (UBL_MESH_MAX_Y - (UBL_MESH_MIN_Y)));
+      do_blocking_move_to_xy(0.5 * (MESH_MAX_X - (MESH_MIN_X)), 0.5 * (MESH_MAX_Y - (MESH_MIN_Y)));
         //, min(planner.max_feedrate_mm_s[X_AXIS], planner.max_feedrate_mm_s[Y_AXIS]) / 2.0);
       stepper.synchronize();
 
       SERIAL_EOL();
     #endif
 
-    SERIAL_ECHOLNPAIR("UBL_MESH_MIN_X  " STRINGIFY(UBL_MESH_MIN_X) "=", UBL_MESH_MIN_X);
-    SERIAL_ECHOLNPAIR("UBL_MESH_MIN_Y  " STRINGIFY(UBL_MESH_MIN_Y) "=", UBL_MESH_MIN_Y);
+    SERIAL_ECHOLNPAIR("MESH_MIN_X  " STRINGIFY(MESH_MIN_X) "=", MESH_MIN_X);
+    SERIAL_ECHOLNPAIR("MESH_MIN_Y  " STRINGIFY(MESH_MIN_Y) "=", MESH_MIN_Y);
     safe_delay(25);
-    SERIAL_ECHOLNPAIR("UBL_MESH_MAX_X  " STRINGIFY(UBL_MESH_MAX_X) "=", UBL_MESH_MAX_X);
-    SERIAL_ECHOLNPAIR("UBL_MESH_MAX_Y  " STRINGIFY(UBL_MESH_MAX_Y) "=", UBL_MESH_MAX_Y);
+    SERIAL_ECHOLNPAIR("MESH_MAX_X  " STRINGIFY(MESH_MAX_X) "=", MESH_MAX_X);
+    SERIAL_ECHOLNPAIR("MESH_MAX_Y  " STRINGIFY(MESH_MAX_Y) "=", MESH_MAX_Y);
     safe_delay(25);
     SERIAL_ECHOLNPAIR("GRID_MAX_POINTS_X  ", GRID_MAX_POINTS_X);
     SERIAL_ECHOLNPAIR("GRID_MAX_POINTS_Y  ", GRID_MAX_POINTS_Y);
   #if HAS_BED_PROBE
 
     void unified_bed_leveling::tilt_mesh_based_on_probed_grid(const bool do_ubl_mesh_map) {
-      constexpr int16_t x_min = max(MIN_PROBE_X, UBL_MESH_MIN_X),
-                        x_max = min(MAX_PROBE_X, UBL_MESH_MAX_X),
-                        y_min = max(MIN_PROBE_Y, UBL_MESH_MIN_Y),
-                        y_max = min(MAX_PROBE_Y, UBL_MESH_MAX_Y);
+      constexpr int16_t x_min = max(MIN_PROBE_X, MESH_MIN_X),
+                        x_max = min(MAX_PROBE_X, MESH_MAX_X),
+                        y_min = max(MIN_PROBE_Y, MESH_MIN_Y),
+                        y_max = min(MAX_PROBE_Y, MESH_MAX_Y);
 
       const float dx = float(x_max - x_min) / (g29_grid_size - 1.0),
                   dy = float(y_max - y_min) / (g29_grid_size - 1.0);

Marlin/ubl_motion.cpp

         // in top of loop and again re-find same adjacent cell and use it, just less efficient
         // for mesh inset area.
 
-        int8_t cell_xi = (seg_rx - (UBL_MESH_MIN_X)) * (1.0 / (MESH_X_DIST)),
-               cell_yi = (seg_ry - (UBL_MESH_MIN_Y)) * (1.0 / (MESH_X_DIST));
+        int8_t cell_xi = (seg_rx - (MESH_MIN_X)) * (1.0 / (MESH_X_DIST)),
+               cell_yi = (seg_ry - (MESH_MIN_Y)) * (1.0 / (MESH_X_DIST));
 
         cell_xi = constrain(cell_xi, 0, (GRID_MAX_POINTS_X) - 1);
         cell_yi = constrain(cell_yi, 0, (GRID_MAX_POINTS_Y) - 1);