Add hotspots to navigate around to google VR iOS SDK

I want to add Hotspots to Google VR iOS sdk (or similar). I need the ability of look at a hotspot to navigate from one panorama or video to another one and a hotspot on the floor to go back home. I need a very simple app to showcase how to do this and how to add hotspots in specific locations. Please do not apply if you don't have VR experience