How to create gaze selector with createDefaultVRExperience?

I find this demo but it’s not use createDefaultVRExperience to enter vr mode,I try to change it with createDefaultVRExperience but fail.
Or you may have some other way to create a gaze selector?
this playground can’t select mesh in normal mode ,but vr mode is ok
Is it onNewMeshSelected unuseful in normal mode?

Please be patient as I think that @RaananW is out until next week