You can copy an object within a message
definition file, such as a message for a local element object, or types for
a complex type object. To copy an object:
Switch to the Broker Application Development perspective.
Ensure that the Outline view is visible in the Broker Application Development perspective.
If the Outline view is not visible, from the workbench menu
click Window> Show View> Outline.
In the Outline view, right-click the message model object that
you want to copy then click Copy on the pop-up menu. Alternatively, right-click the object in the Message Definition editor Overview tab
then click Copy on the pop-up menu.