Is there a way to make a volume pedal control the master volume of the Fantom 06? I have scenes created with various tones at various volume settings. When I use a volume pedal, it removes the ratio volume settings and makes all the tones in each scene be the same volume. I have tried both a Roland pedal and an M-Audio pedal. Same thing on both. I thought I read somewhere about setting the ratios via partials, not zones, but I'm not sure I understand that. If anyone can enlighten me, I would appreciate it.