anyone using tethered capture with Fuji GFX 100 or 100S?

I am sorry to say, but the documentation C1 provides in:

Tethering with a supported camera

is extremely lacking in detail.

I can't figure out how to focus my Fuji GFX100S in C1 tethered shooting mode. The camera connects no problem (I am on a Mac M1 Max / Monterey, and C1 v22), but in tethered mode there seems to be no support to launch auto-focus. Whitebalance pick is also disabled.

Is it possible that Fuji supports is simply that limited?

Thanks for any pointers and help,

Peter