title: How to add libraries to "External Libraries" in WebStorm/PhpStorm/Intellij
body: <p>I'm trying to add libraries to "External Libraries".  I've added them in <code>Setting -&gt; Javascript -&gt; Libraries</code> and they are highlighted now as "(library home)", but they are not added to external libraries which allows code inspection and TODO's to work for them.</p>
  
  <p>What is the difference between "library home" and "External Libraries" and how do I make a library external?</p>
  
  <p><img src="https://i.stack.imgur.com/mePG8.jpg" alt="enter image description here">
  <img src="https://i.stack.imgur.com/SyfTG.jpg" alt="enter image description here"></p>