Gear VR Cursor Button Activation

I have a crosshair cursor and by bringing the cursor over a button it will activate this after lets say 2 seconds. So I have no need to use a gamepad or something like that.
The whole navigation happens inside the gear vr, only by looking to the button you want to click.
Is this possible?
I have seen this on krpano. Click the VR-Button in the menu bar and look down a bit. You can activate the buttons by looking to.

Yes it’s possible and got a little bit easier to do in 4.13 with the new widget interaction component - attach it to your camera/actor and use “center” for interaction source: