Roll shutter ?

I have a roll shutter garage door,the control unit is useless and can't afford replacement unit.
I've seen a key operated switch which is suitable for roll shutter garage door operation.
Before ordering a purpose made key switch for roll up garage doors I need to wire in the motor to switches in order to be sure the motor is still functional
HOW?
The motor conductors [Wires] are Blue. Brown, Black and earth [Black being the reverse action conductor.

thanks