Bug 211703 Support muti-view on report item.
As title described.
xtab/org.eclipse.birt.report.item.crosstab.core/src/org/eclipse/birt/report/item/crosstab/core/de/CrosstabReportItemHandle.java
}
	/**
	 * Inserts a measure into the given position. Position index is 0-based
	 * integer.
	 * 
	 * @param measureHandle
	 *            the OLAP measure handle to use
	 * @param index
	 *            insert position, a 0-based integer
	 * @return
	 * @throws SemanticException
	 */
	public MeasureViewHandle insertMeasure( MeasureHandle measureHandle,
			int index ) throws SemanticException
	{
		
		
		if ( measureHandle != null
				&& getMeasure( measureHandle.getQualifiedName( ) ) != null )
		{
			logger.log( Level.SEVERE,
					MessageConstants.CROSSTAB_EXCEPTION_DUPLICATE_MEASURE,
					measureHandle.getQualifiedName( ) );
			throw new CrosstabException( handle.getElement( ), new String[]{
					measureHandle.getQualifiedName( ),
					handle.getElement( ).getIdentifier( )},
					MessageConstants.CROSSTAB_EXCEPTION_DUPLICATE_MEASURE );
		}
		CommandStack stack = getCommandStack( );
		stack.startTrans( Messages