Courses now reads like Home. Waiting on you comes first, then your published courses, then your drafts. A course's menu there also has Duplicate, for a draft copy you can change on its own.
Open a course and its page starts on what learners will see: its cover, where it stands and the one step it needs next, such as Publish. Its teams sit right there, and its modules follow in a list, in the order learners take them. To change a course, Edit in chat takes you back to the conversation that built it.