I have only been beta testing my new CQ20B for a few days to get to grips with it so far.
Yes you can name the auxes out, example IEM and it does show in the fader windows, at least on my remote Ipad and laptop anyway. Have not tried it with the FX but I do remember seeing a window that showed the FX ICON s for each channel during my rapid flick thru’s on menus and different screens as I experimented. I have been concentrating on scenes and soft keys for a workable method of scene switching and not yet concentrating on detailed settings yet..