I'm regularly playing in situations (but not always) in which going FOH through just the Left Main XRL output. Yet I set up all my live rigs and performances using good headphones, which are of course in stereo. It would be nice to go to the OUTPUT menu and make a quick change to the headphone output, so that I'm listening to the same signal in my headphones that will be going to the front of house, and often back to me in mono through IEMs, and therefore see if I like how it will sound going to the FOH.
