code: public void setWidgets (Iterable<Actor> actors) {
  		clearChildren();
  		widgetBounds.clear();
  		scissors.clear();
  		handleBounds.clear();
  		splits.clear();
  
  		for (Actor actor : actors) {
  			super.addActor(actor);
  			widgetBounds.add(new Rectangle());
  			scissors.add(new Rectangle());
  		}
  		float currentSplit = 0;
  		float splitAdvance = 1f / getChildren().size;
  		for (int i = 0; i < getChildren().size - 1; i++) {
  			handleBounds.add(new Rectangle());
  			currentSplit += splitAdvance;
  			splits.add(currentSplit);
  		}
  		invalidate();
  	}
docs: Changes widgets of this split pane. You can pass any number of actors even 1 or 0. Actors can't be null.