Sharing a MS Teams Class Notebook from the Team it was originally created and linked in to a second

I have had a request from a member of staff who has a Microsoft Teams 'class' site with a Class Notebook setup that her students used in the previous academic year) who now wants to share the same Classnote to a different Teams site (within the same university and school).

From what I can see online this is not possible, I can connect to the same Class Notebook within the same Team site but in a different channel but not between two different Team sites.

Is this right or am I missing something?

Any help would be greatly appreciated.