How to use Unity's global menu in GNOME Shell, if possible?
Solution 1:
The application menu or global menu [as some people like to refer to it] that comes with unity provided by appmenu-gtkand indicator-appmenu doesnot work on gnome-shell. There is an alpha status globalmenu extension for gnome-shell which can be installed via ppa. But it won't look exacly like what is seen in unity the video in the link shows how it works. if you want to try it out you can install it:
sudo add-apt-repository ppa:webupd8team/gnome3
sudo apt-get update
sudo apt-get install gnome3-globalmenu
