Bug 151960 Library element popup menu display is wrong.
1:Creat a libray, add a table to this libray. 2:public this library. 3:Creat a report design. 4:Open the library explore, drag the table to the layout editor. 5:Select the table row, copy the selection row. 6:Select other row, clik the right button of the mouse to popup the menu . The result:Paste action and insert copied column action is highlight.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/ColumnBandInsertPasteAction.java
originalCells = getCellsContextInfo( adapter
					.getCellsUnderColumn( 1 ) );
		}
		else
		{
			originalCells = getCellsContextInfo( adapter
					.getCellsUnderColumn( targetColumnIndex ) );
			if ( !isValidInsertAndPasteArea( originalCells ) )
				return false;
		}
		List cells = data.getCells( );
		try
		{
			isSameLayout( cells, originalCells );
		}
		catch ( SemanticException e )
		{
			return false;
		}
		return true;
	}
	/**
	 * Inserts a copied column to the given column index.
	 * 
	 * @param columnIndex
	 *            the column index
	 * @param data
	 *            the copied column band data