All good, but the collapse part is really an antipattern in my opinion: you see, you just HIDE the code instead of writing smaller more readable method/classes. So you open a 5K line class and see just 10, because it's collapsed, but you need to go to some method there anyway. And you just press Ctrl+T (or whatever shortcut for goto all in your editor) and type the method/smth to go there. With the collapsing in play the code appears just hidden and there is absolutely no point in that on a modern machine/devenvironment.