Checking if DOI assignment is on or off in

I just upgraded to and am struggling to make sense of this feature. If I check the DOI status (Metadata>Indentifiers), the check box indicating “Assign the DOI to this article” is checked. If I uncheck it and save, it turns on again.

How can I tell definitively if a DOI is assigned?

I want them on most components of an issue, just not the cover page and frontmatter.

Answered my own question. Once the DOI is assigned, the button changes to Clear DOI.

Is there still no feature to automatically assign DOIs to some sections and not to others?