Basic

The Basic type can be used to include a pre-defined set of fields. Read the main article about Basics here.

Example:

EXT:your_extension/ContentBlocks/ContentElements/basics/EditorInterface.yaml

 name: example/basics
 basics:
     - TYPO3/Appearance
 fields:
     - identifier: header
       useExistingField: true
     - identifier: TYPO3/Links
       type: Basic