Is there a way of moving an existing class notebook to a group (NOT Classroom)?

Hi. I created a classnotebook as a training resource for staff, and have since set up a group to better manage the whole thing. I'd rather not set up a whole new notebook in the-built in group one, so I'm wondering if its possible to attach the exisitng one to the group? I dont want to use classroom as its still Beta in NZ.

Cheers

John