title: How to access QTabWidget tab editor in Qt Designer - when I double click object name dialog pops up
body: <p>I have a <code>QTabWidget</code> and I want to add/remove/rename individual tabs. Some sources claim that you can double click it to get a tab editor. When I double click it, I get the "Object name" popup:</p>
  
  <p><img src="https://i.stack.imgur.com/iN0zQ.png" alt="image description"></p>
  
  <p>I need a similar editor like the one used for comboboxes:</p>
  
  <p><img src="https://i.stack.imgur.com/2CM62.png" alt="image description"></p>
  
  <p>I also tried to edit tab properties by right-clicking it in object tree. The menu is pretty stripped of any useful options:</p>
  
  <p><img src="https://i.stack.imgur.com/Zxd20.png" alt="image description"></p>
  
  <p>How to manage tabs? Is it possible without XML editor? If yes how do I</p>
  
  <ul>
  <li>... delete tabs?</li>
  <li>... add tabs?</li>
  <li>... rename tabs?</li>
  <li>... change tab layout?</li>
  </ul>