To create a package, choose one of the following methods:
Using the diagram toolbar button:
Click the Package button
on the diagram toolbar.
Click on the diagram to create the package.
Using the diagram context menu:
In Diagram view, right click on the background.
From the context menu, select New > Package.
Using the element context menu:
In the UML Navigator view, right click on the package or class diagram.
From the context menu, select New > Package.