Hi,
I’ve tried to use the RRF configurator at https://rrfct.bigtree-tech.com/Start which allows selecting of the GTR board with the M5 expansion board, but when it comes to selecting motor drivers, it is limited to adding two E drives (up to E2 on the main board) but not the drives on the M5 board. Is there a guide on how to modify the config to allow addressing of the M5 board drives?