Firstly, it’s a great plugin, very useful and functional for users on the screens where it displays – functionality wise (concept) this should be in core.
Per master zip
From link on “Attachment details” [Page] it opens in the main frame so still have access to main menu, but it is a pity that the “Post thumbnail editor” link does not open a pop over the way the “Post thumbnail editor” [Button] does – from the “Edit Media” [Page]
Also, for improved usability and consistency it is a shame that the “Post thumbnail editor” [Button] is missing from the “Attachment details” [Page] -> after clicking the edit button.
For end users, editors etc. it is a bit of a mind-field to find out how and where this functionality is, if not stumbling across it. Otherwise, it is functional and very handy!
So thanks ??