Cannot find detailed instructions for using Montage and Motif Rack XS live and controlling volume of each independently. I have a Motif Rack XS midi'ed to my Montage. I would like to control the volume of each independent of the other's volume. I'm using 2 FC7 foot controllers. One controls the Motion Control knob, the other controls the volume on both the Motif Rack as well as the Montage. In a live situation, I would like to cross fade from say strings on the Rack to piano on the Montage. Is this possible and how would you set this up?