How to Set AutoTool change For GRBL

Autotool Change M6 Function

1.M6 Start
Go to Probe Position
G0 z20
G00 x50 y-30

2.M6 End (Probe And set Position)
G0 X0.1 Y-0.3
G38.2 Z-0.50 F50
G92 Z0.95 (plate position offset)
G0 Z50.000 

Example For Universal G code Sender

OpenBuild Probe