Reusable objects like storage objects (Tablespaces, Filegroups), Schemas, Types, User-defined Properties, Templates, etc... have a Used By Property Page. This page displays and lets you edit which other Model objects use the selected object. To have a Model object use the selected object, simply check it. You can also jump to the displayed items by double-clicking on them.
This page shows all the objects (Tables, Synonyms, etc...) that are using the currently selected object (in this case a Schema). You can check and uncheck
any of the entries to have them use (or not) the selected Schema.
Used By Toolbar 
- toggle to display selected items only
- expand the tree to show all objects
- make the current object use the selected objects
- make the current object not use the selected objects
Max Items Control
Some categories, like Columns, might have thousands of potential entries. Use this control to specify a limit to the number of entries that ModelRight 4.1 should display in a category.