Add a language to the list of Factory BuiltIn Languages

Hi all,

I wondered if it is possible to add an additional language to the list of Factory BuiltIn Languages from which you can chose when editing a Access Profile? We have a setup with multiple partitions, each requiring its own Access Profile incl. customized logon pages. We would like to add our native language as possible option so we only have to translate all text only once.

If we can do this programmatic (by using iControlREST for example) per Access Profile, than this would also be a valid solution. If someone can provide some example code please share...