Got back word from OBDeleven email support. I asked if it can monitor engine knock, and if there is a list of what can be monitored. There response:
"Our device have same functionality as VCDS. Best place to ask questions of that type is OBD11 forum*http://obdeleven.proboards.com/"
So after spending a little time browsing their forum, I see that Vagcom "channels" that the vehicle supports seem to be fully represented (example video linked below). I'm inclined to give it a shot. Would be such a convenient alternative!
https://youtu.be/L2eIUekZA-o