Assign language tag with predefined subtitle track name

Hi,

Would be it possible to assign a language tag to a predefined subtitle track name ?

Example:

the predefined track name that I created is Portuguese (Brazil) but the language is just pt Is it possible to assign pt-br to Portuguese (Brazil) track name in something like the settings or automatically ? It would be easier than changing every language code individually.

And do that for all kinds of languages that need BCP 47 language tags (fr-fr,es-419,zh-cmn-hans,...)