Using ubuntu 12.04 I can bring back minimized windows using alt tab but I would like to see a list of the windows I have minimized. I think metacity may be what I want. If I go to the ubuntu software centre in my launcher and click 'installed' and then click 'uncategorised' I find metacity so it seems to be installed. However when I go to Dash and type metacity I get "Sorry, there is nothing that matches your search". Any idea what is going on?