Hello THere!
Hope you are doing good!
Theme is not designed for one page navigation however you can archive your requirement by adding below code to functions.php file
function myfunc_add_extra_script(){
echo '<script>
jQuery(document).on("click", "#primary-menu a", function(){
jQuery(".meanmenu-reveal").trigger("click");
});
</script>';
}
add_action('wp_footer', 'myfunc_add_extra_script', 20);
We recommended to create child theme and add above code in functions file.
Have a great day ahead!
Thanks and Regards,
Team ProDesigns