Creating a Composite Structure Diagram

You can create a composite structure diagram in an existing OOM in any of the following ways:

Right-click the model in the Browser and select New > Composite Structure Diagram from the contextual menu
Right-click the background of any diagram and select Diagram > New Diagram > Composite Structure Diagram from the contextual menu

To create a new OOM with a composite structure diagram, select File > New, choose Object-Oriented Model from the Model type list, choose Composite structure Diagram as the first diagram, and click OK.