Seems thats will be possible edit Key Mapping in Skyrim but interesting will thats require recompilation of scaleform swf files after editing, if yes will UDK editor useful for this or there will be such function in CK?
Control Map// 1st field: User event name. DO NOT ALTER! This field is used to ID events in the code // 2nd: Keyboard key ID that will proc this event. A value of 0xff means the event is unmapped for this device. // 3rd: Mouse button ID that will proc this event. // 4th: Gamepad button ID that will proc this event. // 5th: If set to 1, this event can be remapped to a keyboard key// 6th: If set to 1, this event can be remapped to a mouse button// 7th: If set to 1, this event can be remapped to a gamepad button// 8th (Optional): User event binary flag. Used to group together related user events, like "Movement" or// "Menu", so they can be toggled on and off together// // Blank lines signify the start of a new input context. // See ControlMap.h for more details on input contexts. Keyboard configuration// 1st field: Keyboard key name, e.g. "Spacebar". DO NOT ALTER! This field is used to ID events in the code// 2nd: Key hardware value. Matches DIK_* virtual key codes on PC// 3rd (Optional): Flash key code. Used by Scaleform IO. Not every key has a Flash key code.mouse configuration // 1st field: Mouse button name. DO NOT ALTER! This field is used to ID events in the code// 2nd: Key hardware value.// 3rd: Flash key code. Used by Scaleform IO. Not every key has a Flash key code.