Duplicate a group or channel?

I use Stream to create tutorial videos for my students.  Each semester as students ask for help, I create a video and add it to my "library".  The problem is, as far as I can tell, each semester I have to create a new channel/group and one by one add the videos from the prior semester to the new semester (this is at a university).

Why can't I just duplicate the existing collection of videos and assign it to the new class?  I can't even add my new students as a group or channel (sorry those terms are confusing and I never remember which is which).  The only way to add them is student by student individually.  I can't bulk add them!?

I tie everything into a Teams page for each class I teach - embedding Stream in a tab in Teams.  

I realize Teams is just a front end for Sharepoint, so I thought perhaps Stream was also part of Sharepoint as well & therefore it'd be easy to copy/move things around, but that doesn't seem to be the case.  Sharepoint is itself a complete user interface disaster, so perhaps it's there but you have to have a computer science degree to figure it out.

Sorry for sounding frustrated, but it feels like there isn't a single person at Microsoft who looks at the products as a whole and tries to make them unified and simple for customers to use.

-Paul Griswold, MFA

Assistant Professor of Animation

MTSU