Linking Courses to the Series
Once the series has been created, you can link courses to it.
Step-by-step Guide
Go to the course in question.
Go to Course Administration > Users > Enrolment Methods.
Select "Series of Courses" from the "Add method" dropdown menu.
Next to the “Link to this series (bundle) of courses” setting, select the series course that you recently created
Click on “Add method” to save your changes
You can bundle a course with multiple series by following the steps above multiple times.