ALT+TAB on windows of all workspaces

If you're using Gnome with Metacity on Linux, you might have experienced, that you can switch between windows using ALT+TAB only between windows of the current workspace.
Apparently you cannot change this just though editing a conf file. To find a remedy you could either use CRTL+ALT+TAB ( which was not the solution i was looking for) or install the superswitcher package.

== Update ==
Actually this package does not do, what it is excepted to do.