...
- Navigate to the course.
- Click "EDIT."
- Click "Pre-requisites."
- Navigate to the 'Course Access' block
- Under 'Type' select 'Completion Required'.
- Type the prerequisite course in the "Course prerequisites" field. When the course appears, click the course name to select.
- To add more than one prerequisite, click "Add another item" and repeat step 4.
- If there are more than one prerequisite courses, use handle icon to re-order them.
- Click "Save."