protected List getCellsUnderColumn( int columnIndex )
protected List getCellsUnderColumn( int columnIndex, boolean mustBeStartPosition )
	protected List getCellsUnderColumn( int columnIndex )	{		List cells = new ArrayList( );		cells.addAll( getCellsInSlot( element.getHeader( ), columnIndex ) );		SlotHandle groups = element.getGroups( );		for ( int i = 0; i < groups.getCount( ); i++ )		{			GroupHandle group = (GroupHandle) groups.get( i );			cells.addAll( getCellsInSlot( group.getHeader( ), columnIndex ) );			cells.addAll( getCellsInSlot( group.getFooter( ), columnIndex ) );		}		cells.addAll( getCellsInSlot( element.getDetail( ), columnIndex ) );		cells.addAll( getCellsInSlot( element.getFooter( ), columnIndex ) );		return cells;	}