How do I set up a buffer switch like Alt-Tab on Windows:? It cycles through a list sorted by last access first? So if I pressed Alt+Tab, I'd get the last accessed buffer. If I pressed it again, I would go back to the first file. If I pressed Alt+(Tab,Tab) I would go the second to last access buffer. Unlike the existing Ctrl+6 in Vim, I wouldn't want unopened buffers to be a part of the list.