Bug 210241 Axis title should be horizontal to Axis by default when select Flip Axis.
chart/org.eclipse.birt.chart.ui.extension/src/org/eclipse/birt/chart/ui/swt/wizard/TaskSelectType.java
if ( yAxisNum > 2 )
			{
				cbMultipleY.select( 2 );
				( (ChartWizardContext) getContext( ) ).setMoreAxesSupported( true );
			}
			else
			{
				cbMultipleY.select( yAxisNum > 0 ? yAxisNum - 1 : 0 );
			}
		}
	}
	public void changeTask( Notification notification )
	{
		if ( previewPainter != null )
		{
			
			if ( chartModel instanceof ChartWithAxes )
			{
				checkDataTypeForChartWithAxes( );
			}
			previewPainter.renderModel( chartModel );
		}
	}
	private void checkDataTypeForChartWithAxes( )
	{
		
		
		List sdList = new ArrayList( );
		sdList.addAll( ChartUIUtil.getBaseSeriesDefinitions( chartModel ) );
		sdList.addAll( ChartUIUtil.getAllOrthogonalSeriesDefinitions( chartModel ) );