[Neos] Contact Form Select Field add options and values

[Patric Eckhart]

How can I add options and values to my contact form

      -
        type: 'TYPO3.Form:SingleSelectDropdown'
        identifier: paket
        label: 'Paket'

I have tried this:

      -
        type: 'TYPO3.Form:SingleSelectDropdown'
        identifier: paket
        label: 'Paket'
properties:
options: 'Test1','Test2'
values: 'First','Second'