Gary wrote: you would need to be logged-in as the bureaucrat user you created during installation to do anything at Special:Userrights.

Peter Blaise responds: Thanks, Gary, but as mentioned, how might I log in as bureaucrat?

I'll keep researching.

Perhaps the real question is how to export and import ALL our data and settings so I can migrate our content and configuration to a new home whenever I want to, and then I'd also know how to back it up without needing to backup the non-changing, reinstallable master programming of MySQL, PHP, MediaWiki and so on.

I'll keep researching.

- Peter Blaise