I would like a way to access library functions (eg, short name, tags, ratings) by an option on the menu that displays when you click the book cover icon at the upper left of each pane. It would be useful to click that icon and then be able to click an option such as "select this book in the library" -- thus opening the library with the current book highlighted.
Or perhaps just having some of the library functions available in a submenu.
For example, if I'm using a book and think, "I use this book a lot -- I'd like to rate it a 5." I could do it without having to open the library, find the book, and change the rating. Or if the tabs get narrowed and I want to change the short name -- I could do it quickly and painlessly without having to take a side trip to the library.