I\'m trying to assign a midi controller to the cutoff of a patch in GS LE.My controller is a roland JX-305 which has 9 knobs that can transmit. the 305s filter knob is CC#74. how would i assign that to control the GS filter. I looked in the case properties under filter. I dont see anything that looks that lets me assign a controller #. Any idea what I\'m not seeing? thanks!!