Mac Mail "View as Icon" missing in High Sierra? I upgraded to High Sierra and now the "View as Icon" option in Mail is no longer there.  Anyone know where it went? Is it gone for good :-(
What I was told by my AppleCare chat was that tis is a "Cosmetic Change: for Markup to work on attachments.  You are right that the  view as icon option is still there for text and numbers and for image files, but not for multipage PDFs.  Give Apple feedback on you interest in having this restred.