Learn for Jira administrators can delete courses, upload custom courses, and reinstall the default courses. They can also add and edit the modules within a course.
To complete any of these options, select Course Editor from the Lighthouse drop-down menu at the top-right of Jira. From there, there are two paths. If you want to add content into Learn for Jira, you would click the Create Content button in the banner on the Content Management page.
You can only access the Content Management page if you have 'Course Create' or 'Course Admin' permissions.
For more information about adding content, check out the Content Management documentation.