This is probably a spoof, but it will warm your Clint Eastwood instincts. Please hand out the peanuts.
Hat tip to Rex Regis, courtesy of a FB post.
But less lightly, how would the MS folks design this thing? Give an option that says: “Would you like me to suggest where to put the proper footnote”? But how would the computer know from where you did the cut-and-paste? (It would know the file where it came from, or the URL; but then that will need to be reformatted; so the MS folks will have to build in a citation manual into MS Word, or call up an app running on a citation manual.) Maybe it is doable. There are enough geeks out there willing and happy to help. Some Justices are well well ahead of our times.