TweakFriend 2 can help you discover the wonderful hidden features of your Mac by unlocking them for you! For instance:
TweakFriend can do these things and many more! Go ahead and download this program -- find out how friendly TweakFriend can be in customizing your Mac.
Disclaimer: Since this app will modify the system settings, use it at your own risk. If anything goes wrong, click the "Restore to Default" button on TweakFriend.