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As of v2.93.23311.1, List Builder includes support for specifying list languages. This allows importing new and updating existing lists in multi-language Sitecore installations, using a different language than the current context. Note that once a list has been created the languages cannot be changed via List Builder - versions can be added via the Marketing Control Panel.
As of v2.93.24124.1, additional select All / None links are displayed as a convenience for websites with a large number of languages. Also see the FuseIT.S4SLB.DefaultLanguageCodes configuration setting to define default languages for new lists.
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