title: tmux bind shortcut to create a pane above or to the left?
body: <p>Whenever I use <code>tmux split-window -h/v</code>, it creates the new split to the right/bottom, respectively.  I want a command that creates the new split on the <em>other</em> side (i.e., to the left/top), but I can't find any simple answer for this anywhere... How can I bind this behavior into a shortcut?</p>
  <p>What happens by default:</p>
  <pre><code> _______                         _______
  |       |                       |   |   |
  |   *   | == split-window -h =&gt; |   | * |
  |       |                       |   |   |
   -------                         -------
  </code></pre>
  <p>What I want a shortcut for:</p>
  <pre><code> _______                         _______
  |       |                       |   |   |
  |   *   | ==        ?        =&gt; | * |   |
  |       |                       |   |   |
   -------                         -------
  </code></pre>