title: Shortcut key to show unsaved changes in Sublime Text 3
body: <p>How can I set the shortcut key for right key -> show unsaved changes in Sublime Text 3?</p>
  
  <p>I have tried</p>
  
  <pre><code>{ "keys": ["alt+f10"], "command": "show_unsaved_change" },
  </code></pre>
  
  <p>but it does not work.</p>