title: Switch container view dynamically
body: <p>I'm using a storyboard container view. So I have a view controller containing a container view. I have a second, smaller view in the storyboard, which is embedded in that container via an embed segue. So far so good.</p>
  
  <p>Now I would like to be able to switch the contents of that container view dynamically, when the user taps a button. The button will be on the main, larger, view. I have made another view controller of the same smaller size, and given it a different storyboard ID.</p>
  
  <p>However, I can't work out how to code the switch. I can only create a single embed segue for that container.</p>
  
  <p>Any help gratefully received.</p>