What functionality is missing? What is unsatisfying with the current situation?

Currently, there doesn't seem to be an option to add localized versions of a single article, but it would be helpful to have such an option. For example, if there is an article in English, it would be great to have a button or option that says 'Add localization' or 'Translate into another language'. This would allow users to create a copy of the article with a label indicating the language they're translating into. They can then work on the translation for that language and switch back and forth between different languages. This would improve the accessibility of the article and make it more diverse.   I can imagine this feature like this using json structure: { article: {x:"X," y:"Y," z:"Z", localization: {NAME:"ENG", x:"X", y:"Y", z:"Z" }, {NAME:"ENG-US"", x:"X", y:"Y", z:"Z" } } So every localization is just single nesting in the article.  

How does this feature request address the current situation?

This feature eliminates the need to recreate a world in different languages or create cluttered directories. Instead of copying articles and manually organizing them into language-specific directories, users can add localized versions of a single article using a 'Translate into another language' button or option. This not only reduces the risk of human error, but also simplifies change tracking. Additionally, a notification could be added to remind users to update localized versions after making changes to the base article.    

What are other uses for this feature request?

This feature could be used to create multiple versions or sub-versions of the same article. While there may be additional use cases for this feature, these are the two scenarios that come to mind currently.