open_vocabularies.links.action.yml

entity.open_vocabulary.add_form:
  route_name: 'entity.open_vocabulary.add_form'
  title: 'Add vocabulary'
  appears_on:
    - entity.open_vocabulary.collection

entity.open_vocabulary_association.add_form:
  route_name: 'entity.open_vocabulary_association.add_form'
  title: 'Add vocabulary association'
  appears_on:
    - entity.open_vocabulary_association.collection