Sage X3 Language - Locale

SUGGESTED

Hi, I want to set up a new Locale in X3 which is easy enough through Administration => Administration => Locales, and this works fine in terms of decimal symbol etc.

However, the menu across the top (V11) showing Administration, Development, Parameters etc still shows in English when the new Locale is used.

How can I change this to be appear in a different language?

Thank you,