i was watching the documentary "Making of Murray Street" and I think it was Jim O'Rourke that was messing around with his pedals and he had about 4 of them and connected them all into a volume control or an expression pedal that had been converted into a master switch, so when you step down on the volume control/expression pedal, it would activate all the other pedals at one time. I was just wondering if someone could help me out with this, i would like to do it myself