As a followup to my above reply. I tested it toggling between 2 footpedals using Reg Seq REG+/REG- assignment, and couldn't get it to work reliably. I found the best solution if you need to trigger ACMP on/off via footpedal is save ACMP off to 1,3,5, and 7 Reg buttons, and ACMP ON to 2, 4, 6, and 8 Reg buttons. Assign a single foot pedal to REG+. Now, with the use of a SINGLE foot pedal alone, everytime you press it, the ACMP will toggle on/off as you had originally requested. - Scott