Hi Michael and everyone,
Firstly, amazing how cool, fast and stable this software is. I'm running electric guitar into a Babyface Pro FS using a 2020 Pad Air. Amazing to have multiple instances of THU overload amp sim mapped to different colours. Awesome!
For backing drums. I have got a few apps Drumperfect Pro, Lumbeat Rock DM, DM1, and Session Band Drums.
When I add a New Audio unit, only Drumperfect player is available. This shows up as a second input device.
In Drumperfect I can set clock source as Loopy Pro. I can then select my drum pattern presets and all is good.
I hope this helps other users.
Cheers
Ben