Got it
I just asked my good friend Google and found https://www.learndash.com/support/docs/developers/hooks-and-filters/
For future reference should anybody be looking for the answer, here it is:
1. Create a child theme or use the blank one provided at https://docs.generatepress.com/article/using-child-theme/
2. Update functions.php of that child theme with
add_filter( ‘generate_sections_post_types’,’generate_add_section_post_types’ );
function generate_add_section_post_types() {
return array( ‘page’,’post’,’sfwd-courses’,’sfwd-lessons’,’sfwd-topic’,’sfwd-quiz’ );
}