Reference Section > Touchcut G Code Reference > Notes on Using G-Codes:

ToolOn and ToolOff are all that are needed to begin and end a cut (piercing is automatic, with on screen hold/go override for gas). Tool Off (M3) includes a vertical rapid up a preset distance. Pierce, preheat and exhaust dwells are built into the tool on/tool off commands. M31 may be used to start a manual drill cycle to speed up piercing of thick plates.