Got an external midi fader box?

With your typical external midi fader box like the Peavey PC-1600(x) or an Encore Knobby, you can record MIXER setting during real-time record.  Just setup your knobs/sliders on the midi control box to transmit these midi sysex strings:

F0 47 00 44 45 (Event Type) (Pad Number) (Value) F7

There are four types of events.

01 STEREO LEVEL

02 STEREO PAN

03 FXsend LEVEL

05 INDIV LEVEL

Pad numbers A01 ~ D16 correspond to 00 ~ 3F.

Value can be set between the range 00 ~ 64

Be sure to program the box not to exceed 64 or else midi note data gets erased!   If you have pushbutton you could also program mutes with them by using a VALUE = 0 for the LEVEL settings.  Unfortunately,this only works during real-time record (or step-entry) and not during real-time play. I had hoped it would.  Ah, something for the wishlist.