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
{
	private static InsertPositionGroupAction[] instances = new InsertPositionGroupAction[]{
			new InsertAboveGroupAction( null,
					Messages.getString( "InsertPositionGroupAction.Label.Above" ) ), 
			new InsertBelowGroupAction( null,
					Messages.getString( "InsertPositionGroupAction.Label.Below" ) ), 
	
	
	
	};
	/**
	 * Creates a insert group action, given slotid and selection list.
	 * 
	 * @param slotID
	 *            slotid
	 * @param selection
	 *            selected editparts
	 * @return action
	 */
	public static Action createInsertGroupAction( int slotID, List selection )
	{
		if ( slotID == TableHandle.HEADER_SLOT
				|| slotID == ListHandle.HEADER_SLOT )
		{
			return new InsertAboveGroupAction( selection,
					Messages.getString( "InsertGroupActionFactory.label.insertGroup" ) ); 
		}
		else if ( slotID == TableHandle.DETAIL_SLOT
				|| slotID == ListHandle.DETAIL_SLOT )
		{