title: Change multi-cursor editing shortcut
body: <p>Right now in order to perform a multi-cursor edit in SublimeText3 I press <code>Ctrl</code> and click the places I want to edit.</p>
  
  <p>I want to change this so I press <code>Alt</code> (instead of 'Ctrl') and then click the places I want to edit.</p>
  
  <p>I feeling like it should be somewhere in <code>Preferences</code> -> <code>Key Bindings</code>, but I was not able to find the option.</p>
  
  <p>How can I change this key binding?</p>