Hi Monique,
I’m not sure if I understand your comment about the process definition category. In the BPMN XML there’s a targetNamespace attribute that we also expose in the Eclipse Designer and web based modeler. The value of this targetNamespace is automatically used to fill the category attribute of the process definition object and you can access it by retrieving the ProcessDefinition instance.
I also think the XML extension is the cleanest approach and yes we should expose it in the Eclipse and web based editor. That would be good to have anyway. I’ll add it to the list of things to implement.
Best regards,
Tijs