Thanks! I've been sorry, more than once, since setting up Apple's version of two factor authentication. I have to remind myself how much happier I am with this "safer" method and that I'm not still in the military, or FBI, or any other US Government employee database...
In fairness to "WeatherCat tech", I imagine
Stu has simply not become acquainted with this two-factor behavior. AFAIK, he is the president, CEO, accounting, sales, tech support
and development department, and chief bottle washer for the whole WeatherCat operation. Apparently he does this with only two arms and hands!
Hopefully, he'll see your post/solution and manage to edit the User Manual, which he also writes and edits...