I need to add a teacher/user to a course that ended for students, but is still active for teachers. The add people button is not available. How can I make this happen? I am an admin. Thank you!
You should be sure that doing so doesn't violate any rules of a course ending and moving to the official record of the course at your institution. Some registrars wont allow any modifications of a completed course.
That said, you will need to go into settings and change the end date to tomorrow, add the teacher and then set the close date back to what it was.