You and the GP are right. The original tool was deprecated early in the '10s: http://googlesystem.blogspot.com/2011/08/google-sets-will-be-shut-down.html http:/

You and the GP are right. The original tool was deprecated early in the '10s: http://googlesystem.blogspot.com/2011/08/google-sets-will-be-shut-down.html http://googlesystem.blogspot.com/2011/08/google-sets-will-be... and the feature survived in Sheets until 2014: http://googlesystem.blogspot.com/2012/11/google-sets-still-available.html http://googlesystem.blogspot.com/2012/11/google-sets-still-a... (you had to hold control while dragging). (Obligatory, in the comments from a decade ago: "They shut down Google Dictionary recently and now this set tool. What's next, Google? Gmail, perhaps?") Disclosure: I work at Google, on Sheets many years ago.