How to create a relation to locales with Strapi 4?

In Strapi 3 we created a feature to change the display order of locales using a relation field with a one-to-many relation to locales:

  "attributes": {
    "localizationOrder": {
      "plugin": "i18n",
      "collection": "locale"
    }
  }

Is there any way to model this in Strapi 4? With the Content-Type builder it is not possible any more to create a relation to locales.