Usage: LOAD window
  This script contains bindings for Window handling in an EMACS-like
  fashion. After pressing the META2 key (either CTRL-X or TAB) you
  can press one of these:
    2		Open a new window.
    + or z	Grow the current window by one line.
    - or ^z	Shrink the current window by one line.
    =		Balance the size of all windows.
    0		Kill the current window!
    1		Kill all other windows!