title: Combining two windows in Screen
body: <p><strong>How can you combine two windows in Screen?</strong></p>
  
  <p>I have two windows such that I can move between them by <code>^A p</code> or <code>^A n</code> in Screen.</p>
  
  <p>I would like to combine two windows which have the numbers 1 and 3.</p>