qustion plz developers answer

hi i new user i want to creat a rom with custom languge
in my ****ery huawei device have not persian languge i want to create a custom rom with persian languge and edit build.prop like this


i know how to edit build prob but only section i can edit is build number an some other but this cokcer have ben edit main name of buildnumber how i can do this?

tnx for reply