This would be so cool. I didn't realize S1 didn't have this.
Many instruments doesn't support direct CC learn (kontakt supports it)
So, currently you can assign knobs and faders in focus or global mode. But when you are recording the instrument, you have to keep the instrument UI open to record the automation (controlling volume or something)
If it's in global mode, recording other instruments also affects the previous assigned instrument (while recording)
A simple solution to have MIDI CC channels as input for any parameter.
This can be saves per plugin/VSTi as global and focus is saved.
E.g. I assign MIDI CC 7, to a master fader in a synth. Then record midi as usual. The CC7 will control that specific instrument (just like modulation for any other instrument) on a per channel, per instrument basis.