Assigning an additional language to a content item

By default, a content item only has the language English. If a user now wants to add another language to this content item, e. g. French, the following steps are required:

1. Add a language (e. g. French) to the list of supported languages.
2. Add all content items to whitch you want to design this language (e. g. French) to an app.
3. Check all content items of this app to ensure that all items have the read-write permission.
4. Add the language (e. g. French) to the target languages of the app.
5. Save the app. All content items now have the new language (e. g. French).