Chris@0: entity.menu.add_link_form:
Chris@0:   route_name: entity.menu.add_link_form
Chris@0:   title: 'Add link'
Chris@0:   class: \Drupal\menu_ui\Plugin\Menu\LocalAction\MenuLinkAdd
Chris@0:   appears_on:
Chris@0:     - entity.menu.edit_form
Chris@0: 
Chris@0: entity.menu.add_form:
Chris@0:   route_name: entity.menu.add_form
Chris@0:   title: 'Add menu'
Chris@0:   appears_on:
Chris@0:     - entity.menu.collection