Multiple work product instances in a SPEM diagram

[ThE]

Is there a solution to add a work product twice in a SPEM 2 diagram with EA7.5? The intended use is a review workflow with the same work product as input and as output but with different states (draft - reviewed).
When i drag/drop a work product definition the 2nd time from the the treeview to the diagram, i get an error message "This diagram already contains an instance of the element you are trying to paste. Currently, only one instance is supported, so you cannot paste the element here."

Any ideas?
Thanks in advance
   Thomas

[Sunshine]

I had a similar problem in a BPMN diagram. I got around it by creating a new instance. I held down the ctrl key as I dragged the element across to the diagram. The first element would be an instance in draft and the second reviewed.

Hope that helps.
Regards,
Paul