ContainerSlot groupHeader = group.getSlot( TableGroup.HEADER_SLOT );
ContainerSlot groupHeader = group .getSlot( IGroupElementModel.HEADER_SLOT );
	private void resolveDropInSlot( TableGroup group, int groupLevel,			LayoutSlot layoutGH )	{		ContainerSlot groupHeader = group.getSlot( TableGroup.HEADER_SLOT );		if ( groupHeader.getCount( ) < 1 )			return;		int rowId = groupHeader.getCount( ) - 1;		TableRow row = (TableRow) groupHeader.getContent( rowId );		resolveDropInRow( row, rowId, groupLevel, layoutGH.getLayoutRow( rowId ) );	}