In edit phase, to help user or admin to create or maintain a template or a module, a module can display messages in the user or admin language by i18n tables.
Now this is made by a special test, but if the module can get de user language this can become automatic.
See an [[ https://fr.wikisource.org/wiki/Module:ControlArgs/Documentation#Abstract_about_multilingual_evolutions | abstract ]], and an example:
The submodule [[ https://fr.wikisource.org/wiki/Module:ControlArgs1 | ControlArgs1 ]] support the main module [[ https://fr.wikisource.org/wiki/Module:Author3 | Author3 ]] and collect their /I18N sub modules tranlations in this [[ https://fr.wikisource.org/wiki/Utilisateur:Rical/Victor_Hugo | author page ]].
Module:ControlArgs1 also help to manage versions, search and unwrap "Versions effectives".
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**Version**: unspecified
**Severity**: enhancement