In Moodle 3.9 you are able to copy your class. This would be useful when if you have a second session, a repeat of a course in another term, and/or if you have set up a templet course
In the Moodle course you would like to copy go to the gear box and select Copy Course
On the next page fill out the course information
Indicate if you would like to bring over user data, such as students posts and their assignments. You can also bring participants over in their current role.