On the Projects window of the NetBeans IDE, expand the Project containing the Collaboration you want to copy until you see the Collaboration.
Right-click the Collaboration you want to copy, and select Copy.
Right-click the Project to which you want to copy the Collaboration, and select Paste.
A copy of the Collaboration appears in your Project. The Collaboration can be copied within the Project or to another Project. If you copy it to the same Project, a number is appended to the Collaboration name.
Repeat this step for additional copies of the Collaboration.
To add each new Collaboration to a Project's Connectivity Map, drag and drop the Collaboration from the Projects Explorer tree to the Connectivity Map Editor.
The new Collaborations can now be associated with the Project's components.