title: How to display standard up/down controls in iOS toolbar
body: <p>I was wondering if Apple provides standard controls for the up/down arrow keys for the toolbar? All the other familiar buttons are present in Interface Builder, but not the arrow keys.  </p>
  
  <p><img src="https://i.stack.imgur.com/1MtRm.png" alt="arrow controls"></p>
  
  <p>Is there a way to show them programmatically?</p>