title: How and where would you use instantiateViewControllerWithIdentifier
body: <pre><code>UIStoryboard *mainStoryboard = [UIStoryboard storyboardWithName:@"MainStoryboard"
                                                       bundle: nil];
  
  MenuScreenViewController *controller = (MenuScreenViewController*)[mainStoryboard 
                                                 instantiateViewControllerWithIdentifier: @"&lt;Controller ID&gt;"];
  </code></pre>
  
  <p>Where exactly do i write this code if i have to make sure that the current view is instantiated with the identifier? Which means if i write any code on this class it has to appear when this viewcontroller loads? Also how would i use it? I dont want to create an instance of the menuscreenviewcontroller. WHich means i have to say self but i used self.view and that doesnt work. </p>