How do I move my panel?

[Michael Hirsch]

Well, I upgraded to meercat.  It broke my grub installation and I
could not find a way to reinstall grub, so I ended up doing a complete
fresh install.  Most depressing.  I haven't had to do a fresh install
due to upgrading in years--maybe even a decade.

Anyway, I'm back up.  I backup up /home, so almost everything is
configured as I'd like.  Except...my panel.  I have two displays, and
the panel is now on the right display and I'd like it on the left.  I
can't find any way to move it.   There is a YouTube video of how easy
it is to move, but I can't get it going.

Any hints?

Thanks,

Michael