Before i commit to animating a 3D model - does this even work? Also can an interactive UI be placed in the world tracking scene?
Yes and Yes. I have just done a little test so you can see. You can use animation and include an UI.
Great! So if I export an FBX file from Blender, I can just add it to the scene as I normally would, with the animation timeline etc? And also a UI that sits on the screen as buttons?
Yes! you can export the animated fbx in the same way you normally do. In the UI you can use the same as zscreen left or right… so it adapts to your screen device.