My camera is at the studio, but I routinely change the shutter speed on the A7r2 from C1Pro. I do so, to avoid touching the camera during bracketing. I've also changed the ISO this way. I don't have communication between the boy and the lenses, though, so no changes there. Here's where it's a little confusing... there are two tool tabs with "Camera" in their title. The one called "Camera" not "Camera Settings" is where you can change things. It's also where you activate live view.
I just discovered that while you can't zoom in to live view via C1Pro, you can still zoom in on the camera and move around with the dial and it totally shows up in the C1Pro live view. Awesome when your camera is up against a wall (or an RV bulkhead).