Changing Marmora’s controls for different channels would work like on every other Mutant: CV per channel 
I guess so, but I think polyphony works better where you can just modulate stuff, and with Marbles you’d probably want to manually adjust each channel? I haven’t used it yet so might be talking rubbish, I’ve never liked Marbles!
PS Funes is wild as a polyphonic LFO!
I might have to do a quick video in this soon.