Multi-Tool support. If several tools are installed on the machine head, myCNC control software can handle the tool switching procedure and can apply tool offsets just like the standard M6/Tool change procedure.
ATC (Automatic Tool Change) is also supported for any myCNC control board. myCNC contains a Macro Wizard to generate tool change macros for different kinds of tool changers (linear, drum/rotary, chain).
The multi-tool support is illustrated in the video below, showing two spindle router with a pneumatic switching system being used with a myCNC control board: