Hi Paul and Sunil, Extending the designer is not really easy at the moment. There are a couple of extension points that allow you to do these kinds of things, but they are not documented and will probably change in the future. Have a look at the plugin.xml file of the org.jbpm.gd.jpdl.ui project. You will find the 'editPolicies' and 'graphElements' extension points. You can see how they are used in the following excerpts: <graphElement | name="state" | contributor="org.jbpm.ui.contributor.StateContributor"> | <entry | category="org.jbpm.palette.1.BasicNodeTools" | id="org.jbpm.ui.palette.2.State" | label="State" | tooltip="Creates a State node" | type="node"/> | </graphElement> | <editPolicy | id="org.jbpm.ui.NodeComponentEditPolicy" | part="org.jbpm.ui.part.graph.NodeGraphicalEditPart" | policy="org.jbpm.ui.policy.NodeComponentEditPolicy" | role="ComponentEditPolicy"/> | Certainly the use of the 'editPolicy' extension point (which serves to modify and customize the way graphical objects react to user input) requires a fair amount of GEF knowledge. Hopefully this helps. Regards, Koen View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3975443#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...