How to Create Custom Gestures on your iPad

And additional AssistiveTouch features useful for those with physical limitations and those who struggle with multi-finger gestures. Watch video and you will easily make these changes. http://www.cultofmac.com/104193/how-to-use-ios-5s-assistive-touch-features-video-how-to/ 

Also see www.ipad4specialneedsbook.com for written directions and additional videos