Fix Formbot Trex-2+ configs

Followup to #12422

Marlin/src/config/examples/Formbot/T_Rex_2+/Configuration.h

 
 // For Cyclops or any "multi-extruder" that shares a single nozzle.
 //#define SINGLENOZZLE
-#if ENABLED(SINGLENOZZLE)
-  // Parameters for filament retract / prime on toolchange
-  #define SINGLENOZZLE_SWAP_LENGTH          12  // (mm)
-  #define SINGLENOZZLE_SWAP_RETRACT_SPEED 3600  // (mm/m)
-  #define SINGLENOZZLE_SWAP_PRIME_SPEED   3600  // (mm/m)
-  //#define SINGLENOZZLE_SWAP_PARK
-  #if ENABLED(SINGLENOZZLE_SWAP_PARK)
-    #define SINGLENOZZLE_TOOLCHANGE_XY    { X_MIN_POS + 10, Y_MIN_POS + 10 }
-    #define SINGLENOZZLE_PARK_XY_FEEDRATE 6000  // (mm/m)
-  #endif
-#endif
 
 /**
  * Průša MK2 Single Nozzle Multi-Material Multiplexer, and variants.
 #define Y_MAX_POS Y_BED_SIZE
 #define Z_MAX_POS 700
 
-
-// Z raise distance for tool-change, as needed for some extruders
-#define TOOLCHANGE_ZRAISE     2  // (mm)
-
 /**
  * Software Endstops
  *
 //#define LCD_BED_LEVELING
 
 #if ENABLED(LCD_BED_LEVELING)
-  #define MBL_Z_STEP 0.025    // Step size while manually probing Z axis.
-  #define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment
-//#define MESH_EDIT_MENU        // Add a menu to edit mesh points
+  #define MESH_EDIT_Z_STEP  0.025 // (mm) Step size while manually probing Z axis.
+  #define LCD_PROBE_Z_RANGE 4     // (mm) Z Range centered on Z_MIN_POS for LCD Z adjustment
+  //#define MESH_EDIT_MENU        // Add a menu to edit mesh points
 #endif
 
 // Add a menu item to move between bed corners for manual bed adjustment
 // Validate that endstops are triggered on homing moves
 #define VALIDATE_HOMING_ENDSTOPS
 
-
 // @section calibrate
 
 /**

Marlin/src/config/examples/Formbot/T_Rex_2+/Configuration_adv.h

   #define Z_STEPPER_ALIGN_ACC 0.02
 #endif
 
-
 // @section machine
 
 #define AXIS_RELATIVE_MODES {false, false, false, false}
 //#define MICROSTEP16 LOW,LOW,HIGH
 //#define MICROSTEP32 HIGH,LOW,HIGH
 
-
 // Microstep setting (Only functional when stepper driver microstep pins are connected to MCU.
 #define MICROSTEP_MODES { 16, 16, 16, 16, 16, 16 } // [1,2,4,8,16]
 
   #if ENABLED(MOVE_Z_WHEN_IDLE)
     #define MOVE_Z_IDLE_MULTIPLICATOR 1     // Multiply 1mm by this factor for the move step size.
   #endif
+
   //#define BABYSTEP_ZPROBE_OFFSET          // Combine M851 Z and Babystepping
   #if ENABLED(BABYSTEP_ZPROBE_OFFSET)
     #define BABYSTEP_HOTEND_Z_OFFSET        // For multiple hotends, babystep relative Z offsets
     //#define RETRACT_SYNC_MIXING         // Retract and restore all mixing steppers simultaneously
   #endif
 #endif
+
+/**
+ * Universal tool change settings.
+ * Applies to all types of extruders except where explicitly noted.
+ */
+#if EXTRUDERS > 1
+  // Z raise distance for tool-change, as needed for some extruders
+  #define TOOLCHANGE_ZRAISE     2  // (mm)
+
+  // Retract and prime filament on tool-change
+  //#define TOOLCHANGE_FILAMENT_SWAP
+  #if ENABLED(TOOLCHANGE_FILAMENT_SWAP)
+    #define TOOLCHANGE_FIL_SWAP_LENGTH          12  // (mm)
+    #define TOOLCHANGE_FIL_SWAP_RETRACT_SPEED 3600  // (mm/m)
+    #define TOOLCHANGE_FIL_SWAP_PRIME_SPEED   3600  // (mm/m)
+  #endif
+
+  /**
+   * Position to park head during tool change.
+   * Doesn't apply to SWITCHING_TOOLHEAD, DUAL_X_CARRIAGE, or PARKING_EXTRUDER
+   */
+  //#define TOOLCHANGE_PARK
+  #if ENABLED(TOOLCHANGE_PARK)
+    #define TOOLCHANGE_PARK_XY    { X_MIN_POS + 10, Y_MIN_POS + 10 }
+    #define TOOLCHANGE_PARK_XY_FEEDRATE 6000  // (mm/m)
+  #endif
+#endif
+
 /**
  * Advanced Pause
  * Experimental feature for filament change support and for parking the nozzle when paused.
 #endif
 
 /**
+ * G-code Macros
+ *
+ * Add G-codes M810-M819 to define and run G-code macros.
+ * Macros are not saved to EEPROM.
+ */
+//#define GCODE_MACROS
+#if ENABLED(GCODE_MACROS)
+  #define GCODE_MACROS_SLOTS       5  // Up to 10 may be used
+  #define GCODE_MACROS_SLOT_SIZE  50  // Maximum length of a single macro
+#endif
+
+/**
  * User-defined menu items that execute custom GCode
  */
 //#define CUSTOM_USER_MENUS
 #if ENABLED(CUSTOM_USER_MENUS)
   //#define CUSTOM_USER_MENU_TITLE "Custom Commands"
-  //#define USER_SCRIPT_AUDIBLE_FEEDBACK
-  #define USER_SCRIPT_RETURN  // Return to status screen after a script
+  #define USER_SCRIPT_DONE "M117 User Script Done"
+  #define USER_SCRIPT_AUDIBLE_FEEDBACK
+  //#define USER_SCRIPT_RETURN  // Return to status screen after a script
+
+  #define USER_DESC_1 "Home & UBL Info"
+  #define USER_GCODE_1 "G28\nG29 W"
 
-  #define USER_DESC_1  "User cmd 1"
-  #define USER_GCODE_1 "G28 X \n"
+  #define USER_DESC_2 "Preheat for " PREHEAT_1_LABEL
+  #define USER_GCODE_2 "M140 S" STRINGIFY(PREHEAT_1_TEMP_BED) "\nM104 S" STRINGIFY(PREHEAT_1_TEMP_HOTEND)
 
-  #define USER_DESC_2  "User cmd 2"
-  #define USER_GCODE_2 "G28 \nG1 X100 \n"
+  #define USER_DESC_3 "Preheat for " PREHEAT_2_LABEL
+  #define USER_GCODE_3 "M140 S" STRINGIFY(PREHEAT_2_TEMP_BED) "\nM104 S" STRINGIFY(PREHEAT_2_TEMP_HOTEND)
 
-  #define USER_DESC_3  "User cmd 3"
-  #define USER_GCODE_3 "M48 \n"
+  #define USER_DESC_4 "Heat Bed/Home/Level"
+  #define USER_GCODE_4 "M140 S" STRINGIFY(PREHEAT_2_TEMP_BED) "\nG28\nG29"
 
-  #define USER_DESC_4  "User cmd 4"
-  #define USER_GCODE_4 "M114 \n"
+  #define USER_DESC_5 "Home & Info"
+  #define USER_GCODE_5 "G28\nM503"
 #endif
 
 /**

Marlin/src/config/examples/Formbot/T_Rex_2+/_Bootscreen.h

 
 #define CUSTOM_BOOTSCREEN_TIMEOUT   2500
 #define CUSTOM_BOOTSCREEN_BMPWIDTH  128
-#define CUSTOM_BOOTSCREEN_BMPHEIGHT 64
 
 const unsigned char custom_start_bmp[] PROGMEM = {
   B11110000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00000000,B00001111,