update example configurations

update old comments
update or delete deprecated definitions
complement forgotten updates
adjust spacing
some cosmetic changes

Marlin/example_configurations/WITBOX/Configuration_adv.h

@@ -52,7 +52,7 @@
  * The maximum buffered steps/sec of the extruder motor is called "se".
  * Start autotemp mode with M109 S<mintemp> B<maxtemp> F<factor>
  * The target temperature is set to mintemp+factor*se[steps/sec] and is limited by
- * mintemp and maxtemp. Turn this off by excuting M109 without F*
+ * mintemp and maxtemp. Turn this off by executing M109 without F*
  * Also, if the temperature is set to a value below mintemp, it will not be changed by autotemp.
  * On an Ultimaker, some initial testing worked with M109 S215 B260 F1 in the start.gcode
  */
@@ -347,7 +347,6 @@
   //#define USE_SMALL_INFOFONT
 #endif // DOGLCD
 
-
 // @section more
 
 // The hardware watchdog should reset the microcontroller disabling all outputs, in case the firmware gets stuck and doesn't do temperature regulation.
@@ -368,6 +367,7 @@
 //#define BABYSTEPPING
 #if ENABLED(BABYSTEPPING)
   #define BABYSTEP_XY  //not only z, but also XY in the menu. more clutter, more functions
+                       //not implemented for CoreXY and deltabots!
   #define BABYSTEP_INVERT_Z false  //true for inverse movements in Z
   #define BABYSTEP_MULTIPLICATOR 1 //faster movements
 #endif
@@ -459,6 +459,9 @@ const unsigned int dropsegments = 5; //everything with less than this number of
     #define FILAMENTCHANGE_ZADD 10
     #define FILAMENTCHANGE_FIRSTRETRACT -2
     #define FILAMENTCHANGE_FINALRETRACT -100
+    #define AUTO_FILAMENT_CHANGE                //This extrude filament until you press the button on LCD
+    #define AUTO_FILAMENT_CHANGE_LENGTH 0.04    //Extrusion length on automatic extrusion loop
+    #define AUTO_FILAMENT_CHANGE_FEEDRATE 300   //Extrusion feedrate (mm/min) on automatic extrusion loop
   #endif
 #endif