title: Prototype Cells in a nib instead of a storyboard
body: <p>For better re-usability I want to create a table view outside of my Storyboard.</p>
  
  <p>Now when I create a <code>UITableView</code> based ViewController with Nib in Xcode I get the default TableView in the nib file. However, I am not able in Interface Builder to add prototype cells like I am in my Storyboard.</p>
  
  <p>Is it currently not possible to add prototype cells in a nib or am I missing something.</p>
  
  <p>Thanks very much for any help.</p>