In 4D v16 the texts for all the form objects (static texts, buttons, check boxes, etc…) will be stored in Unicode, allowing you to use characters from different languages directly in the form editor.
Especially for Asian or Eastern European languages this will ease the development process.
You don’t need to do anything to benefit from this feature for new created objects and forms.
For a migrated database, you just need to open the form and save it again.