John Bowen Synth Design

Exactly like the mixers would be great indeed !

Do you mean to be able to modulate the input levels just the same way the mixers allow? So, adding Input 1,2,3,4 to the Destination List for the mod paths?
Better to add modulation directly to the inputs so it’s exactly the same as the mixers. Then have the Mod paths free to do Pitch or Xfade.

Hello John !
Well adding the inputs levels in the Pitch, Xfade menu ...
Of course if someone wants to use only levels modulation, he'll have to sacrifice Pitch and Xfade or choose combos like levels 1 and 3 modulated with also Xfade and Pitch modulation.
If you manually tweak one level amount, you can hear the effect of a quarter section of the " rotored " waveform, thus the request.
Also inspired by the MOK Waverazor oscillator.

Can you explain further what it is you are requesting?

I hope it's planned because it's holding back the full potential of the rotors for timbral morphs