It would a nice feature for Plex be be able to Merge shared Libraries across users.
Instead of user selection a Library - Have plex show all content for all share libraries. Duplicates should be eliminated with local copies taking priority. is a selection in made from a remote libray is should just play.
Of course keep current method of providing access as it currently is. this would eliminate the need to ever select a library.
Search first if the request has already been posted before. The goal is to collect the votes for a particular feature in one thread - not to scatter them around.