I recently modified Kontrol X1 mapping so it can control EQs and the volume fader. It pretty cool because I can mix with it on the road. I made a video here that shows how it works.
If you like this mapping you can download it for free for the next day.
I did this with an X1 but I also taped an Audio 2 underneath it and had them both in the original X1 case so it was a fully functioning all-in-one mixer/controller. All I did was unzip the top and plug in the headphones and pull out the phono cable. It was about 4 years ago !