Hello @JasonSwanson
Thanks for posting this in the Canvas Community!
I believe if you need to have that adjusted in your Free For Teacher course, you can contact Canvas support to have them make that change for you. Since you don't technically have an admin to contact for your Free For teacher courses, Canvas support would act as your admin in that instance.
They will just need to have you provide them with a link to the course where you need this done and they will also need written permission from you to make that change. You can usually just send them an email confirming that you want that change and they can make it happen.
Hopefully this helps!
-Colton