code: public void setCurrentEmitter(ConfigurableEmitter emitter) {
  		this.selected = emitter;
  		
  		if (emitter == null) {
  			emissionControls.setEnabled(false);
  			settingsPanel.setEnabled(false);
  			positionControls.setEnabled(false);
  			colorPanel.setEnabled(false);
  			limitPanel.setEnabled(false);
  			whiskasPanel.setEnabled(false);
  		} else {
  			emissionControls.setEnabled(true);
  			settingsPanel.setEnabled(true);
  			positionControls.setEnabled(true);
  			colorPanel.setEnabled(true);
  			limitPanel.setEnabled(true);
  			whiskasPanel.setEnabled(true);
  			
  			emissionControls.setTarget(emitter);
  			settingsPanel.setTarget(emitter);
  			positionControls.setTarget(emitter);
  			settingsPanel.setTarget(emitter);
  			colorPanel.setTarget(emitter);
  			limitPanel.setTarget(emitter);
  			whiskasPanel.setTarget(emitter);
  		}
  	}
docs: Set the currently selected and edited particle emitter
  
  @param emitter The emitter that should be selected or null for none