Deleting Patterns as First Class Citizens from the Model

You can delete elements of the patterns as First Class Citizens (GoF patterns), using both the Diagram View and the Model View. If you delete elements, they are removed from the diagram and from the model.

To delete a GoF pattern with participants:

In the Diagram View or Model View, select the oval pattern element to be deleted.
On the context menu of the selection, choose the Delete with Participants command.
Confirm deletion.