title: Fold / Collapse the except code section in sublime text 2
body: <p>Is there any plugin or shortcut to hide all except code section in sublime text 2?</p>
  
  <p>I need to fold all except section at a time , Not fold one section at a time.</p>
  
  <p>Thanks~</p>
  
  <p><img src="https://i.stack.imgur.com/asy4y.png" alt="enter image description here"></p>