I didn't see this as an idea yet.
This community has already asked about floating at the bottom and raised to the top 'previous' and 'next' buttons, see the response, it was a NO GO: https://community.canvaslms.com/t5/Canvas-Releases/Canvas-Production-Release-Notes-2016-01-30/ta-p/2...
I find when working in multiple templates or courses, it would be a time-saver to have the course ID float at the top of pages to keep it in clear view all the time, so not hidden whenever you scroll down.
Thanks,
Janet
Instructional Designer
Embry-Riddle Aeronautical University - Worldwide