I am intrested in too. Under 2.7.15 I have macro running warming spindle. It starts to tool change position, M0 pausing macro until tool is placed in holder and spindle nut fixed, then pressing S in axis, meaning resume, it goes to safe location and start warming spindle 5000, 10000, 15000, eventually 20000. This macro cannot work in gmoccapy dus to shortcut restriction, or resume button access. Reason having 2.7.15 is gmoccapy posibility to have instance for macros as well as to run in resolution 800x600.
Looking foreards to get some support having shortcuts R,S,P under 1.5.x gmoccapy_lcd7. Ghank gou