I was in fact referring to the drools editor (the jBoss one), not the Eclipse BPMN2 modeler. The id of the editor is the following : "org.drools.eclipse.flow.bpmn2.editor.BPMNModelEditor". (Now that I have checked, I should probably have posted to the drools forum), but it's not an Eclipse Community project.
Anyway, no biggy, I've decided to switch to the BPMN2 modeler. My dependencies to emf are too important to work with the drools editor.
OK, let me know if you need help.
BTW, sorry for the misspelling of your name in my previous post - it's early here and I'm not fully awake yet