OP–Z - how do i change delay timing? [video] July 01, 2021 17:13 Updated here's vanbot exploring a creative use of changing delay timing on OP-Z: for more information please see the user guide. Related articles OP-Z - how do i perform a factory reset? OP-Z + OP-1 - can i sync them? [video] I-1 camera PO-20 arcade - how do i change chords or add a chord progression? [video] OP-Z - how do i update the firmware?