Adding more i18n to Edge 130 APAC

Can I add new languages to Edge 130 APAC just by editing GarminDevice.xml? I have two devices: ROW and APAC (it was a BIG mistake to buy it in China). Could you please provide an instruction how can I move i18n files from european device onto chinese one? Will it work? Since i18n isn't a part of firmware, I guess the device could be configured to use copied translations.