RobotStudio event

How to use paint system MIB physical outputs in Rapid

Hello to all. We are trying to use MIB board physical outputs on connector X8 in order to control paint gun, but I cannot find proper way to define these signals in cfg files. Do you have any idea how to do it. I cannot even see MIB board in IO cfg file, all I could find is A1valves.cfg in home folder with actuator definition on MIB board. Thanks in advance!