#define ORIG_X_MIN_PIN PB12

#define EXT0_PID_INTEGRAL_DRIVE_MAX 205

#define Z_PROBE_HEIGHT -20

#define Z_PROBE_Z_OFFSET 0

#define MULTI_ZENDSTOP_HOMING 0

#define X_HOME_DIR -1

#define LCD_SET_PROGRESS_MANUALLY

#define DISTORTION_CORRECTION 0

#define DISTORTION_CORRECTION 1

With #define GUI_MAX_LEVEL 7, the motor seems stop faster than with 5 and 6.

#define NUM_EXTRUDER 3

#define GUI_MAX_LEVEL 5

#define UI_ACTION_SD_PRINT 1013

#define X_HOME_PRIORITY 0

#define NUM_EXTRUDER 3

This is it?: #define ARC_SUPPORT 1 

#define X_MAX_LENGTH 420

#define X_HOME_DIR -1

#define FILAMENT_RUNOUT_SENSOR

#define JAM_METHOD 1