Question

I try to make copy of my current mix on main mix from ch 1 to ch 24, Then I select mix 7 then I try to paste it. It load all faders from ch 1 to ch 24 to unity level, Also I load current ch 1 audio processing  like gate/compressor/eq to all 1 to 24 ch. I'm using on current 1.9 firmware.

Answer 1

You will need to use UC-Surface to copy the main mix to you AUX's, the copy/past function buttons on the mixer are used to copy fat channel settings and not the fader/mix positions.