Version: (using KDE 4.0.1) Installed from: Ubuntu Packages Bookmarks within a document are grouped under the full name of the file. I think it would be better, and more coherent, if that field was editable and to use, as default, the title of the document, if available, or the short name of the file (without the path). Moreover, also the url field should be editable. In this way, it would be easy "to repair" the bookmarks after repositioning of the file.
(stop misusing the "usability" word!)
*** Bug 191462 has been marked as a duplicate of this bug. ***
I agree that having the filename instead of the full path would result in a much clearer bookmarks list. As Pino pointed out, this may lead to confusion when working with several files having the same name but different paths. Maybe it would be best to make the titles of the bookmarked items editable, so that every user can adjust it as he likes. The default name being the file name without path and extension would also be my favourit setup.