Right now, it is possible to make something simular using MidiOX, CPS or some other MIDI translating software, but I would use it a lot more if it was built into the app itself.
If it was possible to assign one controller (it isn’t in its current state afaik) to several sliders this is already possible in Renoise by adding 2 send-effects to the chain with active “keep source” on both. Then you could assign the same controller to the amount-slider of both send-effect-instances and set the second slider “inverse”. The amount in your layout could be replicated by adjusting the min/max-values accordingly.
If important to you, try the MidiOX or Bome’s MIDI translator solution, and create some very complicated controller mappings. It worked for me, it’s just something that I’d prefer to be built into RNS.
