I am reposting paulharrington's post. I am facing the same problem. If anyone has any suggestions, it is greatly appreciated. I am looking at extending the process designer eclipse plugin to add extra functionality. Specifically, in the visual diagram editor I would like to add extra buttons to the list of nodes available ('start', 'state', 'fork', 'join', etc). The extra buttons would represent my own pre-defined nodes / tasks which would be extensions of the standard node. I would like provide the ability to be able to drag and drop these nodes onto to the process diagram in the normal way. I was wondering if anyone could help out with the following questions: - Does anyone have experience of extending the plugin? Would it be simple or complex task to do? - Is there any specific documentation available on how this could be implemented? Any other help/suggestions on the topic would be most welcome thanks View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3974979#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...