Better organization of objects like Stored Procedures, Views, Tables into logical (user-defined) groups: Accounting, Finance, Inventory, Personnel. Some SPs or objects might be in more than one group.
This is a more complex task. While NorthWind has relatively few objects, even Adventureworks (AW) has almost too many tables and objects to manage graphically without some degree of organization. AW deals with this to some extent by clever object naming, but this only applies to tables. When a database has 200 stored procedures it would be great to have these organized by class but consider that some objects may be used in more than one “class”.