Hi Helen,
I will check out 1511.
I thought we used to have a how to edit MoodleDocs link over to the left someplace, which went to Help:Content . Back when I had more hair, I recall creating a MediaWiki and was able to change the Nav menu. I think this was done via the "skin" (like a Moodle Theme).
In Word you can do a Ctrl+H, type in searc for "Main Page" and then "Main page" and it can replace every instance. I was wondering if something like that existed for MediaWiki.
Bots are little snooping programs that seek out stuff on a MediaWiki. I found this Help:Bots. On the same page I saw something called The MassEditRegex extension.
Just an idea. Chris