I copied course materials, including Collaborate rooms, from another D2L course shell. Can I use those copied Collaborate rooms in my new D2L course shell?
No. You must create new Collaborate Ultra sessions in the new D2L course shell.
Please also see: Cleaning up old Collaborate links
Must I create a new Collaborate room for each time I will meet with my class?
No. While you can create a separate Collaborate Ultra session for each class meeting, you do not have to. Instead, you reuse a room multiple times, even for every meeting throughout an entire semester.
You also are automatically provided with a room named "Course Room" which you can use if you wish.