title: Add subView in storyboard
body: <p>In my program needs to create view, then create subView and add it in view. 
  I create view and subView in storyboard. Then in code:</p>
  
  <pre><code>[subView removeFromSuperview];
  [view addSubview:subView];
  [self.view addSubview:view];
  </code></pre>
  
  <p>How can I add subView to view in storyboard without code?</p>