How Can I Make a Menu in VR Spectator Cam in 4.27 Template?

I am working on developing experiments in VR. We have a Research Assistant monitor the participants using the computer’s monitor. It would help to have a menu on the spectator cam that they can use to enter participant information without the participant seeing. Is it possible to use UMG/widgets to do this? Any ideas on how to get started? I am using the 4.27 VR template.

Thanks!