Effects to Mixes but not Mains

Hey, I am a sound guy at a very tiny church, I am hoping that one of you may be able to help me figure out how to send fx through a mix, but not through the mains. Thank you!

I am running the Qu-24 board :slight_smile:

turn off the FX returns from the main bus

Assign button on the left side of the desk and the select buttons of the channels toggle between on/off for routings

https://www.allen-heath.com/media/Qu-Mixer-Getting-Started-Guide-AP10025_2-V1.9.pdf

on page 19

Thank you!