A: There's only automated translation feature available, when you're logged in to your website, in the left menu > APPS > Translations, you can enable automated translations. Set your current website language, add other languages you'd like to support and save - when done, in the header menu, there will be language selector now.

We're about to integrate a 3rd party solution for more advanced translations with manual editing and better SEO support, but there's no ETA yet.