visualn-8.x-1.x-dev/modules/visualn_dataset/visualn_dataset.links.action.yml

entity.visualn_data_source.add_form:
  route_name: entity.visualn_data_source.add_form
  title: 'Add VisualN Data Source'
  appears_on:
    - entity.visualn_data_source.collection

entity.visualn_dataset.add_form:
  route_name: entity.visualn_dataset.add_page
  title: 'Add VisualN Data Set'
  appears_on:
    - entity.visualn_dataset.collection
entity.visualn_dataset_type.add_form:
  route_name: entity.visualn_dataset_type.add_form
  title: 'Add VisualN Data Set type'
  appears_on:
    - entity.visualn_dataset_type.collection