In the manual, under 9.4 Control Parameters it says "OUT 1 VOLUME NONE/PEDAL…/0-127 This controls global OUTPUT 1 volume (after the preset’s output mixer) and is useful to assign when you want to control playback levels without changing any other aspect of the sound. Amplifier input levels are unaffected for consistent distortion at any level, and effect tail levels will be adjusted as well." I read this as meaning I can assign an expression pedal to control volume as if I were controlling volume on a recording of a guitar not as if I were adjusting volume on the guitar itself. I can turn it down and it sounds the same, but lower in volume. Is this correct? If so, how do I assign it to a pedal connected to the MFC-101?