title: Access tab controller views?
body: <p>I started an app with a single view controller. I've since added a tab controller view and created 4 views that are setup as tabs, and that all seems ok.</p>
  
  <p>The only viewcontroller.swift file I have is the original one. I'm not sure how to access the view controllers for each of the individual tabs.</p>
  
  <p>Should I just use the one viewcontroller.swift for all my code and link the controls in each tab back to it?</p>