pm-4.1.x-dev/modules/pm_story/pm_story.links.action.yml

pm_story.type_add:
  title: 'Add Story type'
  route_name: entity.pm_story_type.add_form
  appears_on:
    - entity.pm_story_type.collection

pm_story.add_page:
  title: 'Add Story'
  route_name: entity.pm_story.add_page
  appears_on:
    - entity.pm_story.collection
    - view.pm_story.collection
    - entity.pm_feature.canonical
    - entity.pm_project.canonical