firmware, select the command to send as G32, as shown below:
2.Manual leveling can be used on the general model structure (MB, I3, etc.), set in
the configuration file needs to be in the hot bed leveling the three point leveling,
four point leveling or five point leveling, the following figure:
5.4 Filament Change Function
Filament Change Function, so that you more convenient to replace the supplies, you
can also pause in the printing point after the use of the feed function. The extrusion
head rotation speed and minimum temperature can be configured in the
configuration file, as shown in the following figure: