title: Keyboard shortcut to switch windows
body: <p>I am using <code>drscheme</code> or <code>drracket</code> for <code>scheme</code>. I have found <a href="http://download.plt-scheme.org/doc/4.1.4/html/drscheme/Keyboard_Shortcuts.html" rel="nofollow">this</a> and <a href="http://docs.racket-lang.org/drracket/Keyboard_Shortcuts.html" rel="nofollow">this</a> for their keyboard shortcuts, but <kbd>Ctrl</kbd>+<kbd>F6</kbd> does not seem to work...</p>
  
  <p>How to switch the cursor between the two windows/editors: definition and interaction?</p>