Id like to have one master bypass box to kick on an off to activate multiple stomp boxes at once. Im assuming such a thing exists. Can someone direct me to a specific product that will do the trick. Nothing fancy, just an A/B switch that will take me from all effects to no effects with the click of a footswitch. I know of A/B boxes like the Morley. Is that all I need? If so, how to I then combine A & B into one cable to send to my amp?