When setting up for a show it can be very helpfull to be able to switch off all outputs (1-6) e.q. in case of feedback from wedge monitors. Possible combined with Main outputs (panic button)
CONFIG button / CONTROL & NETWORK tab / Mute Groups subtab / select one of the 4 MGrp (1 to 4 on the left) / assign all your Out (Out1 to Out6 at the bottom.
Then on the Soft Control subtab /select one of the 3 Soft Key / Function “Mute Group Mute” / Source “MGrp (1 to 4)”.
Done.