I don't know if this topic has been considered previously..
When Markers & Hyperlinks are enabled while viewing a BIMx Hypermodel, it would be very effective to be able to return to the original view after having jumped to a hyperlinked view.
The closest parallel I can think of is a web browser's back and forward arrows. Remembering the pages and their zoomed views would be an added bonus.
Currently BIMx's back and forward arrows just turn whole pages.