I would like to know this too. I posted a question abotu this a week or 2 ago and never got a response (the topic was derailed in to a Blender discussion, lol)
The official 3rd person tutorial on Youtube has the FBX files of the char and some animations, but it doesn’t seem to have any rig controls.
I would think there must be an easy way to either A) add rig controls to the existing skeleton so we can make our own animations with the character, or B) a way for us to duplicate that exact rig easily in ART, make a prototype char w/ some new animations, and then import the animations on to the existing 3rd person character since it’s the same skeleton.