Unfortunately, I still can't find any way to use "search/replace" to find objects whose filling is set to "overprint" (surprisingly, however, this option is available for outlines). This is an important function in print production that should urgently be implemented. I had just discovered white text objects in a 116-page brochure that were accidentally set to "overprint", unfortunately after the brochure was already printed. Very annoying.That is why it is also urgently necessary that the "Extended Display" also simulates overprinting.