This members-only tutorial provides the steps to enable commenting for single lessons when using the Courses plugin for MemberPress.
This has been tested on a site running Twenty Twenty-One. Oxygen-specific changes might be added at a later date if there is a filter hook present for overriding MemberPress' templates from a functionality plugin.
Step 1 - Add commenting support for lessons
Let us add commenting support for the mpcs-lesson Custom Post Type.
In the active theme's functions.php add the following at the end: