It would be nice to be able to link a controller knob to multiple channels globally. Like to Wet/Dry on the piano and the Filter cutoff of the drums, both simultaneasly without the plugin having to be in focus.
At the moment you have to choose which channel gets the knob mapped exclusively.
It could be used like the performance mode on the Elektron analog RYTM. Rotate one knob and multiple parameters over different channels get effected.