CP search for entries where a specific field is empty In the control panel, is it possible to search for entries where a specific field is empty? The Craft search syntax page doesn't help here, and the logical values used in twig don't seem to work here. I haven't been able to find any other info about this either.

Side note: the search syntax is a bit out of reach for many non-dev users (read clients). An advanced search/filter form for entries would be awesome.
We use Zenbu for this exact thing. As we're importing a lot of data, we need to find which entries are missing data - https://zenbustudio.com/software/zenbu-craftcms