Multi language Json files

Hi, I have a json file for the first time and I thought I have understood the system, but now I have several languages in the file. My translation goes from EN to FR. How do I tell Trados to choose the "en" text as source and add it as "fr" after translation?

{
  "calendarEventTranslations": [
    {
      "key": "title",
      "en": "Title",
      "de": "Titel",
      "pl": "Tytuł",
      "it": "Titolo",
      "nl": "Titel"
    },
    {
      "key": "descriptionTitle",
      "en": "Please fill out this field",
      "de": "Bitte füllen Sie dieses Feld aus",
      "pl": "Wypełnij to pole",
      "it": "Compilare questo campo",
      "nl": "Svp dit veld invullen"
    }
  ],
  "imageTranslations": [

    {
      "key": "errorNoData",
      "en": "There is no data or configuration loaded",
      "de": "Es sind keine Daten oder Konfigurationen geladen",
      "pl": "Nie załadowano danych lub konfiguracji",
      "it": "Non sono caricati né dati, né configurazioni",
      "nl": "Er zijn geen data of configuraties geladen"
    },
    {
      "key": "addImageTxt",
      "en": "Click to add Image",
      "de": "Klicken Sie, um ein Bild hinzuzufügen",
      "pl": "Kliknij, ny dodać grafikę",
      "it": "Fare clic per aggiungere un immagine",
      "nl": "Aanklikken om een afbeelding toe te voegen"
    }
  ]
}

Thnx in advance...

Burim

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