LiveTrax is an audio workstation that runs on your desktop computer (MacOS, Windows, or linux). It can use 'any' sound i/o device.
Many consoles (like the Allen&Heath Qu, SQ, and CQ series) have built-in USB audio interfaces that can send all channels to LiveTrax, and receive them back. If your mixer is recognized as an audio device on your computer, then LiveTrax can utilize your mixer for audio I/O.
If your console sends MIDI program-changes when recalling a scene, then you can probably make that feature work by manually connecting the device's midi port to LiveTrax's "Scene in" port. And similarly, LiveTrax can send back to the device using the "Scene Out" port, if the device responds to that.
If you are using an Allen&Heath console, then it will be auto-detected to make the connections for Scenes and track-naming. Track naming only works with Allen&Heath consoles, currently.