title: How to add visual separator between accordion and table in JavaFX
body: <p>I want to add visual separator which can be dragged and resized by the used.
  I tested this code:</p>
  
  <pre><code>public class VerticalSeparator {
  
      public void initVSeparator(Stage primaryStage, Group root, Scene scene) {
  
          //Vertical separator
          Separator separator2 = new Separator();
          separator2.setLayoutX(300);
          separator2.setLayoutY(300);
  
          separator2.setOrientation(Orientation.VERTICAL);
  
          root.getChildren().add(separator2);
  
      }
  } 
  </code></pre>
  
  <p>But for some reason I don't get anything into the primary stage. Can you tell me what I'm missing?</p>