Hi guys!
I'm using UDK and I was just wondering if you knew if UDK users actually have access to the Source code of Unreal so that they can customize the Unreal interface and modify the way that the program behave by adding maybe new fonctionalities or by fixing some bug issues or adding some new menus?Or is this kind of stuff doable for someone who knows UnrealScripting?

Thanks to you guys!