I have a really dumb question. I am finally set up to back up my scenes. The instruction that stumps me is, "• Turn Knob 3 to set your MIDI Channel from Ch. 1-16 or Omni (default is Ch. 1). " I am at a loss; I turning all of the knobs in Scenes mode or Hold for Scene Setup Mode does nothing. What am I missing here? Thank you -- JB