I'have isntalled gnome3 and I have dual screens(laptop, monitor). Is it possible to see the other monitor in workspace preview in the gnome panel??? I only can see primary monitor, that's why i'm not able to move windows inside the second screen? I've tried to change some settings in dconf , but with no luck.

I want to have it like this http://stephen.rees-carter.net/wp-content/uploads/2011/04/Unity-workspace-switcher.png

Does anyone have a solution?