The content of the bookmark can be described in the "Additional information" in an arbitrary way. In other cases I could not see the selections of bookmarks later.
The bookmark is attached to the sheet at creation and it can not be changed later. I understand that this is a special feature of the bookmarking mechanism Qlik Sense.
Maybe to manage bookmarks and there are some extensions, but I'm not in principle a supporter of extensions, unless you are their developer.
thanks! I agree to the extent - rather not use 3rd party extensions in prod apps to minimize the amount of troubles.
Though fully comfortable to play with extensions during POC or testing different ideas.
Sometimes these extensions are very inventive and make you think about core functions in another way.