When people are navigating the system they are always looking for the one button that will change multiple things at the same time. In a lot of cases that button will be your User Define Keys.
In this case will be the "Layer snapshot" option.
This will memorize the layer settings for the input channel faders, MIX encoders,
ENCODER MODE, DCA faders and METERS. First assign LAYER SNAPSHOT to
a USER DEFINED key, then configure all the layers in the desired way, and hold the
USER DEFINED key for 2 seconds until it lights up. Now every time that button is
pressed, it returns the layers to the chosen configuration.
If you want to be able to open your GEQ at the same time just have a group of freq from that GEQ assigned to your DCA faders at the moment you create the layer snapshot.