title: How to access different child view controllers when added on the main view controller
body: <p>I got a main view controller where I add children on it from different types: IntroViewController and ChapterViewController. I have both of them in my storyboard and this is how I add 10 (my main view controller has a scrollview and when I swipe left, the next view controller(s) show):</p>
  
  <pre><code> for(int i = 0; i&lt;10; i++) {
       IntroViewController *introViewController = [self.storyboard instantiateViewControllerWithIdentifier:@"View1"];
       [self addChildViewController:introViewController];
  
   }
  </code></pre>
  
  <p>This function will add 10 viewcontrollers of the type IntroViewController.
  But now they have the same name, and I'm not sure how to access these different introviewcontrollers now, for example what if I need to change the 5th view controllers parameters? Something like:</p>
  
  <pre><code>     introViewController.initialText = @"test";
  </code></pre>
  
  <p>But since they have the same name I'm not sure how to do this...</p>