Ok, this is the solution - type: 'TYPO3.Form:SingleSelectDropdown' identifier: paket label: 'Paket' properties: options: ['First', 'Second', 'Third'] but how can I add values. Currently they are 0,1,2 I have tried options: ['First', 'Second', 'Third'] values: ['First', 'Second', 'Third'] but it does not work :-(