social_course-8.x-2.11/modules/social_course_advanced/social_course_advanced.links.action.yml

social_course_advanced.add_group:
  route_name: entity.group.add_form
  title: 'Add advanced course'
  appears_on:
    - 'view.group_per_type.course_group'
  route_parameters:
    group_type: course_advanced