Thanks for the great question! We definitely think that would be useful. Unfortunately, this is not possible to set up within the module currently, and we realize it would take some external MIDI gymnastics to get voices allocated and channelized correctly.
I spoke with Rob, and it looks like it would be possible to implement MIDI voice allocation in the future, but it's not easy and we're not sure when we'll be able to try putting it in. I wish I had a better answer for you! Do you think you'd be able to set up some external MIDI channelizing for now?
All the best,
Taiho
MOK