To create a course, you first click on the tab 'courses' and select the folder 'Self-made' in the submenu on the left of the page. Then click the icon  'New course'. Enter a title and description, select the desired level and click 'add'. In the table of self-made courses, the new course appears as the bottom row. Click on this new row in the table to navigate to the new course. On this page you can assign modules to the course. If you want to add a sub course, you can also move a separate single course. To do so, select the course from the list at the top of the form and click 'add'. The existing course is moved and disappears as a separate course. You can also create a course by importing an extern SCORM package.