As Keith said - you can use the Mixing station app with midi controllers to control the CQ. I’ve just custom mapped a Mackie control Universal and it’s great - except be aware there are currently bugs in Mixing Station after v2.0.3 with midi / Mackie Control. I use with a touch screen laptop and wifi for remote mixing.
+1 for midi control.
My band runs click/cue/bckg tracks via DaW that also sends midi to gtr and vocal pedals, page turners, set list managers, and lighting. As it stands, the CQ20B is the dummiest (deaf, dumb, and blind) device in the system.