Assign ST1 to CH32?

I run a QU-32 for my church. I want to put all the inputs on to one layer for ease of use of our volunteers. I have everything there except I can’t figure out how to assign the ST1 input so it can be controlled with the CH32 strip on the bottom layer. Thanks for the help!

AFAIK you cant do that on the lower yellow layer.

If you have a channel then you might be able to put it all on a middle custom layer that way.
Otherwise you have to use the blue top layer to select ST1 to use mute or faders.

To change the custom layer Go to setup / control/ select the the channel you want to assign and change to ST1 .