Bi-lingual slider problem

I’m using the Polylang plugin to make a bi-lingual website. I’ve created two post categories for the slider, one for each language. But in Theme Options I can only select one category. Could you advise me on what to do to be able to show slider images (& post texts) from a different category when a visitor changes language?

Unfortunately, I am not familiar with this plugin therefore I can’t help you with it.

That is unfortunate. But what multilingual plungin(s) would you recommend in combination with the Sparkling theme?