Click on any point to change it's data, the correspond legend missing.

<window title="Chart Event" border="normal" hflex="1" vflex="1"
	apply="demo.ctrl.chart.ChartEventController">
	<charts id="chart" type="column" />
</window>

public class ChartEventController extends SelectorComposer<Window> {

	private static final long serialVersionUID = -3296547971541468923L;

	@Wire
	private Charts chart;
	public void doAfterCompose(Window comp) throws Exception {
		super.doAfterCompose(comp);
		CategoryModel model = new DefaultCategoryModel();
		model.setValue("1", "A", 200);
		model.setValue("1", "B", 100);
		model.setValue("1", "C", 300);
		model.setValue("2", "A", 100);
		model.setValue("2", "B", 500);
		model.setValue("2", "C", 200);
		model.setValue("3", "A", 600);
		model.setValue("3", "B", 300);
		model.setValue("3", "C", 800);
		chart.setModel(model);
	}

	@Listen("onPlotClick=#chart")
	public void clickPlot(ChartsEvent event) {
		event.getPoint().setY(250);
	}

}