contacts-8.x-1.x-dev/contacts.links.action.yml

contacts.contact_create_group:
  route_name: <current>
  title: 'Create'
  appears_on:
    - contacts.collection
    - contacts.contact
  options:
    is_action_group: true
    attributes:
      title: 'Create'
      class:
        - 'button'
        - 'button-action'
        - 'action-group-control-create'

contacts.contact_add_indiv:
  # Implements the 'Add Individual' button
  route_name: contacts.add_indiv_form
  class: 'Drupal\contacts\AddContactAction'
  appears_on:
    - contacts.collection.individual
    # For backwards compat, also show on the old contacts.collection route.
    - contacts.collection
    - contacts.collection.all
  options:
    action_group: contacts.contact_create_group
    load_title_from_role: crm_indiv

contacts.contact_add_org:
  # Implements the 'Add Organisation' button
  route_name: contacts.add_org_form
  class: 'Drupal\contacts\AddContactAction'
  appears_on:
    - contacts.collection.organisation
    # For backwards compat, also show on the old contacts.collection route.
    - contacts.collection
    - contacts.collection.all
  options:
    action_group: contacts.contact_create_group
    load_title_from_role: crm_org

contacts.contact_tab_add:
  route_name: entity.contact_tab.add_form
  title: 'Add Tab'
  appears_on:
    - entity.contact_tab.collection