That’s correct. Yes, sidechaining is a form to manage compression of different sound streams based on the amplitude. It’s been used extensively right now in trap beats, but i got familiar with it because it’s used for the basslines of some types of tekno and drum and bass. And that’s exactly the point, it does need to be applied to a group of synths (usually two), so as i understand that would be a new mechanic that the library has not implemented so far… but i don’t see any other option.
I am a little familiar with python but i’ve need really dived deeply into libraries. I understand i might be able to add a new Synthdef, but that would take Synth1 and Synth2 as inputs and output them with chained amplitudes.