You can create an extended collection for a metaclass, stereotype, or criterion.
Right-click a metaclass, stereotype, or criterion and select New > Extended Collection or Extended Composition.
Enter a scripting Name and display Label to use as the name of the tab associated with the collection in the parent object property sheet.
[optional] Enter a Comment and an Inverse Name.
Select a metaclass in the Target Type list to specify the kind of object that will be contained in the collection.
[optional] Select or enter a Target Stereotype to further refine the instances of the target metaclass that may appear in the collection. Click the Create tool to the right of this field to create a new stereotype.
[optional] Click the Customize Default Columns tool to modify the columns that will appear by default when the user opens the property sheet tab associated with the collection.
Click Apply to save your changes.
You can view the tab associated with the collection by opening the property sheet of a metaclass instance. The tab contains an Add Objects (and, if the metaclass belongs to the same type of model, Create an Object) tool, to populate the collection.
