I'm surprised a year later this one hasn't gotten more upvotes.

Yes! Multi-out is the essential feature I would need in order to consider Sand as an alternative to AUM. I use multi-out to route different pads from Koala Sampler to different busses in AUM for mixing/effects.

I would be thrilled if I could record selectable (or all) outputs via AUM or directly into my DAW of choice!

Need to Host multi out apps like DrumComputer to them export stems

This would be an excellent addition and allow dynamic recording via AUM or any DAW supporting multiple inputs