M420: Enable/Disable Bed Leveling and/or set the Z fade height.
S[bool] Turns leveling on or off
Z[height] Sets the Z fade height (0 or none to disable)
V[bool] Verbose - Print the leveling grid
Send M501 ; Load data
Send a M420 V ; Print the leveling grid
Z-Offset
Z-Offset " M851 Z-0.44 " Sets the Z-offset the input -00.44
S[bool] Turns leveling on or off
Z[height] Sets the Z fade height (0 or none to disable)
V[bool] Verbose - Print the leveling grid
Send M501 ; Load data
Send a M420 V ; Print the leveling grid
Z-Offset
Z-Offset " M851 Z-0.44 " Sets the Z-offset the input -00.44