UMG and VR

Has anyone implemented a head-look-like-mouse system that interacts with UMG 3D Widget Components like the Oculus Home uses (or the SteamVR controller pointer thing)? They basically show a circle pointer on the widget’s 2D surface when the head-look-pointer is over the widget (and some even fade out the pointer at the edges of the widget’s 2D surface).

If so, willing to share info or pointers? Thanks!