So you want to create a brand new course? Easy!
Just click on one of the three template choices - Basic, Classic or Minimalist - at the top of the page.
A popup window will appear, asking you to name the new course.
Type in the name, then click OK. You'll immediately be taken to the Course Landing Page to begin editing. When you next come back to the Index page, your new course will be listed amongst its peers, waiting to be edited again.