update: I downloaded the Bome MIDI Translator trial software based on Keith’s input on this thread: https://forums.allen-heath.com/t/cq-and-midi-controllers/15497/6
When I also had the CC Translator running, I was able to send a bank change message from my HELIX to change a scene on the CQ20B. It was enough to convince me to purchase the Bomebox which will arrive next week.