Bug 118750 Insert group for table from library, system throws exception.
Insert group for table from library, system throws exception. Steps: 1.Insert a tabel from library 2.Insert group Actual Results: 1.System throws exception A Birt exception occurred. Plug-in Provider:Eclipse.org Plug-in Name:BIRT Model Plug-in ID:org.eclipse.birt.report.model Version:1.0.1 Error Code:Error.ContentException.STRUCTURE_CHANGE_FORBIDDEN Error Message:Element "report.Body[1]" is child element or a virtual element( inside the child ), can not change its structure. Expected Results: 1.Can be inserted group
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/editors/schematic/actions/InsertGroupActionFactory.java
{
			return getRowHandle( ).getContainer( ) instanceof GroupHandle;
		}
		else if ( getListBandProxy( ) != null )
		{
			return getListBandProxy( ).getElemtHandle( ) instanceof GroupHandle;
		}
		return false;
	}
	/**
	 * Returns if the order is reverse
	 * 
	 * @return true when slot is not footer
	 */
	protected boolean isNotReverse( )
	{
		return true;
	}
	/**
	 * Gets table edit part.
	 * 
	 * @return The current selected table edit part, null if no table edit part
	 *         is selected.
	 */
	protected TableEditPart getTableEditPart( )
	{
		if ( getSelection( ) == null || getSelection( ).isEmpty( ) )
			return null;
		List list = getSelection( );
		int size = list.size( );