title: Where is the "Canvas" option in Xcode?
body: <p>I'm new to Xcode and when reading a tutorial, it tells me to do this in my storyboard file:</p>
  <blockquote>
  <p>First, click on the view controller and go to <code>Editor &gt; Canvas &gt; Show Bounds Rectangles</code></p>
  </blockquote>
  <p>I'm with the interface builder opened but I can't see where is the &quot;Canvas&quot; option (or menu, I don't know).</p>