[news.eclipse.modeling.mdt.uml2] add Class diagram to project diagrams

[gil.hod@xxxxxxxxx (Gilod )]

Hey,
I have created an DFD model via EMF and want to add to my runnable program 
the uml class diagram model as well. so the user would be able to create 
DFD and also Class Diagram diagrams in the same application.

How can I add to the plugIn another model?
I tried to look for UML Class Diagram ecore in CSV but with no luck...
Pls advice, Appriciate your help here!
Gilod