Imagine being able to instantly reconfigure your entire rig with the touch of a single button. Now you can! And, you aren't limited to just MIDI processors. With the addition of a GCX Guitar Audio Switcher, you can also control all your stompbox and rack effects, select amp channels, and more. The Ground Control Pro can simultaneously control up to 8 different MIDI devices, each on their own channel. And, you can assign 8 of its buttons for instant access of GCX loops and processor functions. This gives you stompbox style control over your processor or modeling amp's internal effects.