I run a stereo rig using returns of combos, using the monitor output(S)
Id appreciate the ability control both output volume and global eq to l/r outputs individually.
I imagine the option to switch “stereo link off” in the global eq at the output menu which triggers a 2nd page to accomodate the extra channel....icw a “balance knob” in the output menu for both the mains as well as the monitor.