Localization done, and now? how to load ingame english or french?

i managed to fix the warning about “this project does not have localization data (translations) for this culture” by adding this line in the DefaultGame.ini

[Internationalization]
+LocalizationPaths=%GAMEDIR%Content/Localization/NewTarget
i can now find in “Show Localized” english and français !!

i thought that would fix the localization missing in packaged game but no i still have no translation working in my packaged game

there is no folder “localization” in “Saved\Cooked…\Content” path

is there a manual line to write somewhere that i forgot ?