Usage of DOI in OMP 3.2.0.3

Hello!
i discovered, how to generate and assighn DOI to monographs. But i can’t discover how to send metadata 2 crossref.

So i have question: is it possible in auto-mode, or as described in some topics, i need to generate some kind of xml an upload it to crossref in hand-mode?

@asmecher i have registered doi in manual mode. as i understand there is no plugin at this time?

Hi @redukr, see this, I understand that the plugin mentioned can be installed on OMP 3+ and used to export a valid crossref xml and upload it on web deposit form.
I asked the plugin author for confirmation on the last post of the same thread.
Best regards
Stefano