Go to System → Settings → Store Details
Source language for translation
Select source language to be used for auto-translation. Will work only if you save translatable content in selected source language only. If you change texts in any other languageslanguage, a translation will not be happening.
Text Translation Method
Select the method you want to use for translation. The default method is a straight copy of source language text also others other methods can be available if any translation extensions installed. For example : Google translate extension use Google Translate API v2 to translate from the source language to all other available.
Warning for Google translate API users: Can cause many paid translations.
Override if source language text was changed
If enabled, text in all languages will be replaced with the new translation in case source language text was edited. For example, if your source language set to English and you edit a product (or category) then product name, description, the blurb will be copied/translated to all others enabled languages
AbanteCart powered with the tool to bulk copy/translate or replace all multi-language data like product's info, order's statuses names, tax name, etc. To run it go to System → Localization → Languages. Click edit any installed language and findfind Load missing language data section.
This tool can be useful for newly installed languages