Hotspots and appearance options related not only to model but also to panoramic images.

Create different appearances where each one contains its own panorama

Define hotspots under each appearance where each one changes the appearance to another

You can put hotspot directly on panoramic background

Publish it and enjoy

See published example here

Also check working example from “Sample Models” section of ArtisGL 3D Publisher

Created with the Personal Edition of HelpNDoc: Write eBooks for the Kindle