Trying to program a chain on my two octave Malletkat Express. I stepped on the sustain pedal and edit footswitch to access third octave functions, then tapped D natural for "Global Aux." Now what? the manual and instructional video say to access parameter 46 by tapping the on the black keys, which of course does not work on the Express. How do I access functions Global Aux 46/47/48 to select my kits and set up my chain? thanks in advance...