I think the recent improvements in the library manager are pretty good.
1. Having it available from the main menu would be logical, but not necessary. (I know the individual controls are available from the main menu).
2. One feature I would like to see return is the ability to kill the default library because the path can't be changed (or to edit it to a different location). Right now, I keep it empty and have renamed it "empty" It would be cleaner to be able to delete it or move it.