Just assign each channel (or bus, if you are using a bus as a group) to the mono bus. (Select the channel or bus, move the display cursor to the yellow Mono button, and press the physical Enter button.)
You should read the manual two if not three times, and fiddle about with the console, to get a handle on it's features. Then once you know what you want to do and how to do it, initialize the console and start fresh. (Or steal someone's console file, make the changes you want with Studio Manager, and load it into the console. Here's one: http://www.padrick.net/LiveSound/Yam...onsoleFile.htm )
Thanks, have read the manual twice now. Am I still using the stereo master for my mains or why is the mono word used under input channel 32? Do I just assign my stereo master to 1 output then? Also do I switch off the stereo button on each channel?
Better read the manual again :-) Certainly there is a LOT of information to take in over just a couple of reads. I'm sure there's still a lot that I don't know (like all the Focus stuff).
When you switch to the Master layer, the CH32 fader becomes the Mono Master fader, just as the channel 1-16 faders become the 16 bus master faders, and the channel 17-24 faders become the 8 Matrix master faders.