I don't have this but the webpage says "Complete MIDI control and DAW automation for all controls, with easy-to-use MIDI learn and mapping."
Based on this I would assume that you can map all sorts of controllers (not just Mod Wheels) to all sorts of parameters.
See also
https://docs.cherryaudio.com/cherry-aud ... ng-started and
https://docs.cherryaudio.com/cherry-aud ... ontrollers .
If you download the pdf, "wheel" and "mod wheel" are mentioned.
As for automating parameters by a mod wheel (or any other controller), I have found Cherry Audio Instruments have full sets of automatable/controllable parameters. I usually test these in Voltage Modular's Plug-In Host or in my favorite DAW. I would be surprised if the Octave Cat doesn't contain a full assortment of parameters.