For the benefit of others working on this type of machine I was able to add a momentary on type switch in the wiring and it does work to start the cycle. The switch was added to the circuit between the pink/blue wire at connector plug number 2 and the white/blue wire at plug number 1. This works to connect the timer motor (TM)and LS wires. Clamp type splice devices were used so the wires did not need to be cut. The wiring diagram found in the back of the panel is listed as p/n 37566. I would still like to get a key for the coin box to operate it that way and if anyone has a key that is compatible with this type of coin operated I would like to discuss it with you.