This only works with a special build of Unity. If you try to import the Editor VR package into the latest build of Unity it won’t show up. I followed the few links at the top of the Google doc used here: https://docs.google.com/document/d/1IFQve5gAOb1gQzIhhtEr3WLrctJhsoJxl6j07pg2DYA/edit
You need to download the Unity experimental build provided along with the Editor package. Here it is on my end by using the latest experimental build through that link:
