Well i just mentioned it because I remembered seeing a bug report at SF about CB displaying extremely huge tabs. And we know that project files can be under VERY DEEP directories.
Anyway, I think I found out how to handle the ctrl-f4 stuff. There are two choices:
a) Add wxKeyEvent handlers to EditorManager so that it will close windows using certain key presses.
b) Add a "Window" menu with shortcuts.
Should we stick with a), or include b, too?