) Details, if you want to see more information, such as where the language is spoken.You use this dialog box when you create or edit an audio project. A version of this dialog box can open when you use some experimental features.
Type a language name, its code or the name of a country where that language is spoken.
Select () Details, if you want to see more information, such as where the language is spoken.
Click that language in the list that appears.
Click the field again to see the list of languages again.
Click the X to delete the current language and then type a different one.
Click the Script control to see scripts that are appropriate for the current language.
Phonetic - fonipa is one of the script options. Use it to transcribe a language that does not have a provisional orthography.
Click then Font control to see fonts that are appropriate for the current language.
Save
Click Save to save your choices.
If you do not find the code you are looking for, it may be the case.
For example, en is the code for English. If you type EN, you will not find English. Or if you are looking for en-BE, you will not find it if you type en-be.
Click the Code Explained link to open
https://www.w3.org/International/questions/qa-choosing-language-tags.
https://www.ethnologue.com/ can help you learn about languages and dialects, and language codes.
Click 
(Change Name) to open the Change Name dialog box. Then you can change the name of the chosen language.
If the font you want to use is not listed, get more help.
The appropriate keyboard is necessary.