I know the scribble window is very limited, thats why I'm confused by you wanting to call this "scribble".
Well, it doesn't really have to be called this way, I'd just call it based on what it's supposed to do instead of how it's implemented (i.e. "persistent temp files"). Could be for instance "persistent notepad" and the individual tabs would be `notepad_1`, `notepad_2`, etc.