I've installed StreetPilot both 1.49 and 2.16 for my Andriod phones. The map is dual Thai/English map. If I choose Thai Text, the map display in Thai. That's ok for majority of Thai users. However, I find the UI Thai text too small for my aged eyes If I change text to English, the map, of course change to English as well.

Is there a way to force map display in Thai while the UI text in English?

Thanks in advance,