I get it…it can be confusing…& me actin like I know what I’m talking about…I think I’m wrong above…
I’m pretty sure an fx loop is actually an in & an out combined…argh…so I think I told you wrong info…
The way I explained it above with using aux 1 would be if you plugged aux 1 to the input on the Fusion box & then the outs of the Fusion box to it’s own channel on the mixer.
The fx loop should make it so you don’t have to use a track/channel on the mixer… I’ll see if I can find more info & will let you know
Luckily I have free time at work that allows me to do research & read manuals.
Is this your mixer?