I know I’m missing something obvious, but…
I want to set all my faders to the same value. If I select all the faders and then try to change the value, only the actual channel I am changing gets modified. All the other faders stay at the same value. So I linked all the faders. But then changing one fader moves them all relative to each other - which of course is what you normally want.
But what I want to do is set them all to -6.