Currently in SaaS and on Windows platform when you Bookmark the the current chart selected in Container object, it does not save the selected tab location of the Container., So if you save the Bookmark or Monitor on Hub in SaaS, the location is not saved. When you select that Bookmark, the first chart in the container will be displayed, which is an incorrect result.
Same behavior with Input variable extension. Bookmark does not retain the value selected in the Input variable dropdown.
Bookmark is a very high value feature. It will be a huge value to customers for self-service.