{
  "schema": {
    "options": {
      "name": "options",
      "properties": {
        "options.choice": {
          "name": "options.choice",
          "type": "choice",
          "enum": [
            "",
            "choice 1",
            "choice 2"
          ],
          "title": "Choice description frozen"
        }
      },
      "type": "object",
      "title": "Common configuration"
    }
  },
  "model": [
    {
      "key": "options.choice",
      "readOnly": true
    }
  ],
  "form": [
    {
      "key": "options.choice",
      "type": "choice"
    },
    {
      "title": "Configurer",
      "type": "submit"
    }
  ]
}