Virtual Tours

When adding an image to an info popup, you can't select from the images you've already uploaded. If the same image is needed for pupups in multiple panoramas you currently need to upload the image again, even though it already exists on the server.

It would be more useful for collaboration with untrained clients if we could mark some views to act as waypoints for people to jump to / return to if they get lost while navigating the model. It would also be really nice to include some boundaries...