Qu16 to DAW - Output from non LR

Currently i plugged the qu16 from usb into our mac and have it running into flstudio but it looks like it grabs audio from the LR channel mixer settings.

Is there anyway for the qu16 to send the mix from say mix 5-6 which is our livestream mix instead of from out in house mix?

In the IO set up menu you can patch any output to any USB audio track.

This would only allow the mix 5-6 Left and right to go to usb though correct? Not at the board at the moment.

Maybe im wrong or missing something. But transfering all 10 inputs over usb uses the fader levels for the LR mix when deciding levels, was hoping to be able to use the faders for the 5/6 mix for the usb sends (all the inputs) and not just the left right outputs. But maybe what youre saying does just that.