New language?

[Savie]

A friend asked if there was anyway to be able to change the language he
reads in game to Italian, I looked around at the fonts and figured it can't be too hard to make this however, the Fontbuilder is rather confusing to me. Is there anyone who could help me understand how to use this program a little better? I was planning on making a new Truetype file for this, then editing a currect font xml file. Any suggestions or help on this would be greatly appreciated!