Hotspots in Video Chapters
In Video Chapters, Hotspots should be used as links that allow users to jump to other chapters in your story. Those links can also be an external URL.
Hotspots in Pathfinder Chapters
In Pathfinder Chapters, Hotspots allow viewers to choose one or more options over a looping video. Use them to create decision points where viewers must make a choice in order to proceed.