1 block_content_type_add:
2 route_name: block_content.type_add
3 title: 'Add custom block type'
5 - entity.block_content_type.collection
7 block_content_add_action:
8 route_name: block_content.add_page
9 title: 'Add custom block'
12 - entity.block_content.collection
13 class: \Drupal\block_content\Plugin\Menu\LocalAction\BlockContentAddLocalAction