This blogpost is now obsolete.
Please go to GNOME-Shell Extension: YaST (item in) Status Menu.
If you want to add the YaST menuitem as well, just follow these simple steps (as root):
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Now you have to restart GNOME Shell (press Alt+F2 and enter “r” command) and you can enjoy the new menu item. :-) Remember, the changes will be lost next time you reinstall the