A new note entity needs to be set up in SonataAdminBundle with an admin panel that is a child of a User admin panel. 1. In a Dashboard there needs to be a list of users with a button per row to allow to add notes to the User. 2. This is an existing codebase with the two entities (Note, and User) already set up in Symfony with the many-to-one uniderectional mapping from the note to the user. 3. The resulting dashboard should have two admin sections one that list the Users entity and a nested child admin for note management that is a child of the User list admin.