[translations] Installation Profile - How to make a default locale?

Hi, I need to prepare an installation profile for a certain language. How can I make for the first step of installation screen to be already on that language and for the language to be the default one on the "Choose Language" step? Regards, Miguel ---- Mobile: +351 926806226 Office: +351 217242590 iNum: +883 510004607597 SIP: 607597@voxalot.com Skype: mcduarte2000