Is there anyway to add a new language to the audio tab, I have some DVD's/BD's in my collection which list a language/languages which are not listed, is there a way I can add them to the list?

I'm adding some more movies to my collection, I've just added 'Fury' with Brad Pitt. On the back cover 'Ukrainian' is listed as a language, but I can only add it as 'other'.

This is not the first time I've come across this in my collection.