Hide menu item/page

Hi!

I have marked on my page setting to only show this page to a certain group. That works fine! But as I have the page in my menu I just want it to show for my logged in users and not for everyone?

If I had a shortcode solution in PHP-format I could use it in my header.php and set up a custom menu for just thoose pages.

http://ww.wp.xz.cn/extend/plugins/electric-studio-client-login/