Translate blog single post layout & category list layout

Hello dear balbooa team,
we're trying to have a multilingual blog and have already translated the posts themselves but struggle to find where to edit the single post layout & category list layout for the secondary language.
We've found this similar problem https://support.balbooa.com/forum/gridbox/15064-translate-single-post-layout-and-category-list-layout-elements on the forums (first question) but there's no public visible solution?
Could you let us know how to change those please?
Thanks in advance for your help!

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