These are the language and currency switcher options. First, you need to translate your website using WPML plugin then you can add the language and currency switcher.
You can consider the following documentation in the following link:
I saw the screenshot you attached. Sorry, but there is no option in Theme Settings to add custom elements in the header builder.
If you are trying to ask anything else then please provide with some relevant screenshots of the specific area to check it myself and help you out accordingly.
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