VR camera switching between first person and "scaled model" view

Good morning everyone, I am trying to gain an understanding on how to change camera perspectives when inside my SteamVR project.

I want the user to be able to go from first person on the ground, to a birds eye view camera in the sky, where the user could be able to see the overview of the project area. Think of it like standing over a scale model of the Map.

Has anyone ever accomplished this or could help direct me in accomplishing this idea?

-Dylan