Ok, thanks. The mapping diagram could be good enough for the time being, the important is to be able to get a good overview of the structure with all relations between the entities. Maybe it can be used as base for adding edit capabilities on the diagram level. Haven't been able yet though to figure out how to make it work on an existing project with JPA entities. I get a message that the project has to be a "JPA project" but can't find anywhere to make it so. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4264317#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...