When using DAW mode he will lose a lot of flexibility for his monitoring.
Then all audio flows have to be routed through USB/DAW with the full RTL (round trip latency).
One of the big strength of such a digital mixer is, that you can create monitoring mixes, where
- audio from HW inputs to HW outputs can be routed in near-realtime
- you can create a mix of audio which partially comes from the PC and partially from HW inputs
Then I would rather suggest to use TM FX full mode and provide there with one mouse click a basic routing, which is the same that you would get in DAW mode as a base. Take this as a starting point and add routings as needed.
See also my posting here, how easy this is to achieve:
https://forum.rme-audio.de/viewtopic.ph … 26#p190726
BR Ramses - UFX III, 12Mic, XTC, ADI-2 Pro FS R BE, RayDAT, X10SRi-F, E5-1680v4, Win10Pro22H2, Cub14