Forget to add video lesson:
"How to add, edit and delete hotspots in virtual tours with TourCreator"
https://www.youtube.com/watch?v=IFI-1QUlTg4
Add hotspot with your custom image. Or use 10 pre-installed images for hotspots (in each 12 skins you have 10. They are automatically changed when you change design. So not 120

)
You can order in skin not only open linkedscene, but also any from 7 pre-installed actions - open image, infobox, plan, text, interactive map, play sound. You can also order any custom action.
For example, you can insert in tour any plugin from krpano set
http://www.krpano.com/plugins/ and order on hotspot click to close/open it or other.