Shortcode and menu

Good day gentlemen! I use this theme all the time, I like it. So far there have been no problems or shortcomings. Now I need one thing: I made several site languages with a plugin and I have a shortcode for it. I need to put this shortcode in the menu next to the search option, but this is not possible. Because only a page can be placed there. Unfortunately, it is not a shortcode. I would like to put this shortcode here or in another site header. I hope you will consider this. Thank you.