for (Object v : getDiagram().getChildren()) {
	NodeImpl masterNode = (NodeImpl) v;
	final EObject masterObj = masterNode.basicGetElement();
	if (((XAbstractFunction) masterObj).getName().equals(object.getName())) {
        	//iterate through set and output its content just for validation
		for (List<String> listRP : setRP) {					
			IElementType type = FnElementTypes.RequiredPort_3007;
			ViewAndElementDescriptor viewDescriptor = new ViewAndElementDescriptor(
				new CreateElementRequestAdapter(
					new CreateElementRequest(
			        		TransactionUtil.getEditingDomain(getRoot()),
						masterObj,
						type,
						FnPackage.eINSTANCE.getXAbstractFunction_Ports()
					)
				),	
				Node.class, 
				FnDiagramEditorPlugin.DIAGRAM_PREFERENCES_HINT
			);
	        	CreateCommand crCmd = new CreateCommand(
			        TransactionUtil.getEditingDomain(getRoot()),
		        	viewDescriptor,
				(View) masterNode
			);
		getDiagramPart().getDiagramGraphicalViewer().getEditDomain().getCommandStack().execute(new ICommandProxy(crCmd));	
	}
}