Reply To: adding a period to the end of every footnote

thank you. I also just got this reply from a colleague (in case it helps anyone else)
You simply say $0. which means “found text” followed by a period. Obviously this depends on you really having what you find be accurate. You can search for any end letter of digit [[:alnum:]]
that is located at the end of a paragraph $
thus your search would be this [[:alnum:]]$

This would mean that the last letter or digit in a sentence without punctuation would come up and then you do replace with $0. and it will keep what you found and add a period. If you want it only to search the footnotes, just have it search for only the footnotes paragraph style.