Can I have a fader controlling the PAFL bus output level on a QU-5/6/7?

Hello,
I want to use a Qu 7 for monitors on a live stage. I route the PAFL bus to a local output and I need a fader to control the level. Is it possible to do it?
I need to keep the use of the headphones.

Not really, as Qu does not have a Listen bus (like SQ) or IEM/Wedge outputs (like Avantis/dLive), meaning there is no output gain stage which a fader (or any other control) could adjust.

The only way to achieve this would be using an physical/analogue loopback and using up an input channel + direct output.