Allen e Heath QU-32

good night

I would like help because we have an Allen & Heath QU-32 where we send via USB audio to the PC, we do the separate mix for live transmission.

But to make the mix separated by channel, Audition only sends the audio to the table itself.

We would like to send the audio to a card and then to the pc that does the transmission

getting the way down.
QU-32> audition> audio card> pc for transmission