title: Two-key combinations with modifier keys
body: <p>I can do plain two-key combinations, eg <code>F &amp; G::</code>   </p>
  
  <p>but how to do so with modifier keys, say<br>
  holding <em>alt-win-F (3 keys pressed)</em> then <em>G</em> (now 4 keys pressed)?</p>
  
  <p>Both <code>!#F &amp; G::</code> and <code>!#F &amp; !#G</code> fail.</p>