title: Multiple tmux prefix key combos?
body: <p>I've got tmux setup just the way I like it, and my chosen key of prefix is `, because it's so quick and easy to use.</p>
  
  <p>Everything was gravy until I tried using tmux from my phone, which doesn't have a ` key. Is there anyway to additionally bind ^a to the prefix, so I can use <em>BOTH</em> combos at the same time?</p>