title: Design window just one preview window
body: <p>My Design window</p>
  
  <p><a href="https://i.stack.imgur.com/01kvM.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/01kvM.png" alt="enter image description here"></a></p>
  
  <p>For anyone that doesn't know my Problem yet:
  Why is the left window that is usually there invisible?</p>