Emu XL-7 & MP-7 User's Group

Can you only have 4 different mixes sent to the
fx?  My other gear lets me assign different send
levels for each midi channel (cc #91 & #93 I believe).
Limiting that to only 4 different send levels sounds
kind of restricting.  Anyway will probably buy either the
XL or MP today.

Hi everyone,
I'm having trouble getting the effects setup properly on my MP7.
What I want to do is select maybe a reverb for FX A and an echo for FX
B and then have a couple of knobs on each preset be assigned to FX A
send and FX B send, so I can have several tracks/channels running and
tweak the fx sends on the fly.
If you're familiar with General Midi, I would just use CC# 91 and 93
on each midi channel (for reverb and chorus).
I know the MP7 is far more powerful than a GM tone generator but I
just can't figure out how to do this.
All help is greatly appreciated.
kaojyan