zc1.5.5f, clone responsive_classic. Site is new build in progress to replace older template. url in my sig file.

Has anyone figured out how to get Currencies selection to work in mobile, either in the side menu or header? I see posting from summer 2016 pointing to /includes/templates/YOUR_CUSTOM_responsive_classic_FOLDERNAME/templates/tpl_modules_mobile_menu.php, and I can see where a code insert would likely go, but haven't a clue what to copy in there.