title: JavaFX: How to make a ScrollPane pan only on middle button?
body: <p>JavaFX's ScrollPane panes on all mouse events when allowed to pan:    </p>
  
  <pre><code>scrollPane.setPannable(true);  
  </code></pre>
  
  <p>How to limit the ScrollPane to pan only on middle mouse events, while still allowing all events to get to the StackPane's content?</p>