I recently purchased StudioLive 32r believing it could do this...it cannot! I have a Soundcraft rack mixer, which has the ability to arrange the channels, effects, subs, etc.. in any order I want to see them. And can has several presets to do different versions for different viewing. It was the reason I selected the mixer at the time.
This and the ability to play mp3 music files from the SD card or from a USB port would be swell.