It took a lot of thought and time and luck to find the answer. It helped that I bought two computers on the same date and loaded them with identical programs.
More later
Finding all my original packaging for Microsoft Office 2013, which included information that led me to the telephone number of a real person in India who eventually, after I taught her what a spike was and convinced her that no, Microsoft wouldn't have taken it out in their latest version of Word, took control of my machine and she could do it the old-fashioned way: control+f3.
