Hooking into Scripteditor

[Björnke von Gierke]

I was asking myself of how one could replace the scripteditor, and what 
messages one would have to send/recieve for it to function.
now bevore I look myself into the Rev-development stacks, I would like 
to know if someone did that already (maybe with another stack in the 
development enviroment).
I would also like to know if that would be easier to make with a plugin.

Or any other related hint/comment