I'd like to make the featured image editable via the Quick Edit.
This tutorial suggests that it is possible to expand the quick edit.
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so the image uploader thickbox (3.5 Version) must be launched from the post edit screen
when "set featured image" is selected, the new image must be saved to the post
the new image must appear in the columns of the post edit screen right away
Basically the same behavior for the featured image as on the regular posts.
Please add the functionality to a separate wordpress plugin named "8am quick edit featured image"