Is there even support for most control surfaces yet? This thread seems to pop up every now and then, but last I had looked into it there wasn’t much support, and definitely not for Mackie or HUI. Perhaps things have changed with 4.3 though.
I just use a numpad + MIDI keyboard as well. Lots of users seem to use Streamdecks too, but I’m not clear on what control surfaces actually work with Dorico.