I have been trying to replace my RAMPS board with a RUMBA board so I could expand my extruding capacity and am having trouble porting my auto bed leveling into my RAMPS board.

I am using a servo with a switch on it but can't find any place on the RUMBA for a servo. I know the switch goes on the Z axis end stop point.

Could someone tell me how to wire the servo and where I can learn about the changes I will need to make to the code?