Thanks for the responses guys!
And yes, while I do see the fans listed under the AIO, the RGB is not controllable, and the fans have limited control. And according to this setup video from Corsair the commander XT should show up in iCue allowing for full RGB and fan control, right?
And I guess that's one of my biggest questions, the AIO plugs into the commander core XT and shows up, but the commander core itself doesn't? Unless iCue can see it cause it's plugged into the AIO slot on the MB?
So yeah, still in the same boat, no commander core XT, no control.