I’m quite proud of myself.
I have created a unit on Copyright for my PreAP Computer Science class. I wanted to use that same unit in my Game Programming class.
I backed up just that topic (note, in the future, I would move that unit to the bottom of the course).
Then I downloaded the backup file.
Then I uploaded it to the Game Programming Course and restored it.
Only problem was that the Copyright unit ended up in the middle of an existing unit. Easy enough to move.
Even the quiz questions got added to the Game Programming course!