For a multi user envirnment it would be nice to separate private logins from shared logins.
The idea is to setup a private and a shared KeePass DB. Inside the shared DB are references to the private DB with the private logins. For easier understanding please take a look at the attached drawing.
Maybe the placeholder syntax could be enhanced like this to reflect the database name:
In my eyes it would be enough to give the databasename instead of a filename. So the DB can be stored somewhere and the user only has to take care that the other DB is opened. This way it would be easy to configure the private DB to open the shared DB with the help of the KeeAutoExec Plugin.