Unity Tweak Tool is Unity configuration tool that aims to expose all the most needed Unity, Compiz, Appearance and Desktop settings in one interface to rule them all.
Install unity tweak tool in ubuntu 12.10
Open the terminal and run the following commands
sudo add-apt-repository ppa:freyja-dev/unity-tweak-tool-daily
sudo apt-get update
sudo apt-get install unity-tweak-tool