You can navigate between the various scenes using Hotspots. Think of these like a circle-shaped object which links one scene to another; it works similar to how you expect a website link to work. You click and you can go to a page except here you go to a scene in your virtual tour instead.
Log into the PropVR Creation Tool.
Go to your PropVR creation tool's dashboard and click on the scene you want to add a hotspot.
Click on "Hotspot" button and then click the "+" button and then you can type a hotspot name to identify the hotspot.
Drag and place the circle-shaped hotspot to where you want it to be and press Done.
You'll be prompted to enter the destination of this hotspot. Clicking on the hotspot will take you to the destination you chose.