2 column layout sync of changes

I use 2 column layout often to make changes to different files, but I also use it to make changes to different sections of the same file.  
I make changes to the top part of a file in the left column layout and also make changes to the bottom of the same file in the right column layout.

If you forget to save the first changes in the left layout, you will lose them when you save the second change in the right layout.  The warning is nice but, I prefer how Notepad++ handles synchronization between layouts of the same file.  

All changes should be sync'ed on the fly... so I don't loose any changes and I don't have to save my file until I want to.