Is there a way to MIDI control the volume of the GFX 1 and 2 Busses? I'm loving all the routing and FX power I have with the RFX card and I'm setting up some really fun MIDI controls with my PX7, but I'd really like to be able to have knobs for the output volume of the GFX busses. I could put a "mixer" effect in one of the slots on them, but I've already got a setup that uses all 16 possible effects and I'd rather not ditch 2 of them just to gain control over my volume.
Any ideas?