Topic: link to a singe category of a gallery – EngineThemes

I have installed a plugin to turn my website into a multilanguage site. I’m using stella plugin that add a suffix “&lang=en” at the end of URL of all pages. As it still impossible for me linking directly by menu tools any single category I create a custom link menu typing the whole URL for each gategory. Unfortunately this way prevents the plugin stella to add automatically the translation suffix “&lang=en” to that pages.

Is there a way to create links to categories directly from the menu panel and not typing the URL? Is there a way to allow the plugin stella to add the translation suffix “&lang=en”?