Managing Users in the Web Interface
Select a user to bring up the General tab with the username, name and activestatus, as well as options to delete the user or change the password.
Select a user and go to the Permissions tab. You will see a list of databasesand their corresponding database access level for that user.
Below this table is another one for the collection category accesslevels. At first, it shows the list of databases, too. If you click on adatabase, the list of collections in that database will be open and youcan see the defined collection access levels for each collection of thatdatabase (which can be all unselected which means that nothing isexplicitly set). The default access levels for this user and databaseappear in the artificial row with the collection name
Also see about access levels.