How do I change the GrampsPortable (Windows) Language?

[emyoulation]

@PLegoux

After my test , I’ve tried this with fr_FR and Gramps works in french but not the dictionary which is still in english

Could you try copying the French .dic & .aff files from the following GrampsPortable subfolder:
..\GrampsPortable\App\Gramps\share\enchant\myspell-all

Intuitively, it seems like they should be in:
..\GrampsPortable\App\Gramps\share\enchant\myspell