IDE With Continual Splitting

I want to really learn which开发者_高级运维 IDE can do continual splitting? What about "Continual Splitting"? Try this:

Open a new file on open office writer. Paste into a long code, than do it:

View -> Zoom -> Columns : 2

If you dont do that you can't understand what i need. I know almost all IDEs can split but i dont need standart spliting.