[bpmn-dev] How to start a new document

["gicatena@xxxxxxxxx" <gicatena@xxxxxxxxx>]

Hi, I'm trying to figure how to create a new BPMN Editor document from my 
plugin.

I need to create a blank document where the user can draw his diagram and then 
manipulate it (like adding annotations).

I'm trying to import the extension points like org.eclipse.stp.im.in.bpmn.
bpmnprocessor, but there's no documentation nor definitions of this extension 
point so I don't know what to do

Can someone please help?