Different translated sidebars for same content

Hello,

I’ve been using Polylang to translate a website to 4 languages.
I have sort of a catalog/image gallery, with a menu made from a custom sidebar (so I have 4 different sidebars)

Now, is there anyway I could keep the translated sidebar but share the same content for all languages?
To make things clear: My main site is Dutch:
http://elexir.be/pretesting/thermobrass/nl/nieuw/

But I have sidebars for every other language (in this example German:
http://elexir.be/pretesting/thermobrass/de/neu/

Now, of course every sidebar item is a different page with an image gallery, is there anyway I could keep the translated sidebar but the page itself just loads the original gallery (so I don’t need to duplicate every page 3 times..)

Thanks for the help!