Is it the github project found at https://github.com/Allted/Marlin/tree/MPCNC_Rambo_T8_16T_LCD_DualEndstop ?
I can still not find the *.ino file.
I can do firmware editing as long as there is a recipe on what to do.
Alternatively I can go back to the old way with pairs of steppers controlled by same channel.
In that case: do I have to roll back some of the operations from the recipe at https://www.v1engineering.com/marlin-firmware/ ? (I successfully executed the steps before “Open the firmware folder and select the current .ino file”)