static bool dataplots_move_row_to_bottom_top(TreeNode& tr, int nRow, bool bMoveToTopOfTree = true)
{
	Tree trTemp;
	TreeNode tr1stPlot;// for the case of bMoveToTopOfTree
	int nCount = 0;
	string strName;
	string strPrefix;
	foreach(TreeNode trNode in tr.Children)
	{
		strName = trNode.tagName;
		int	nIndex = string_to_prefix_end_number(strPrefix.GetBuffer(MAXLINE), strName);
		strPrefix.ReleaseBuffer();
		if(strPrefix.CompareNoCase("DataPlot") != 0)
			continue;
		
		if(!tr1stPlot)
			tr1stPlot = trNode;// remember 1st DataPlot node for insert later
		
		// top level
		if(nRow == nCount)
		{
			trTemp = trNode; // make copy
			tr.RemoveChild(trNode);
			break;
		}
		nCount++;
	}
	if(trTemp)
	{
		if(!bMoveToTopOfTree) // bottom of tree, then top of plot list
			tr.AddNode(trTemp.Clone());
		else // move to bottom of plot list, which means top of the tree
		{
			if(!tr1stPlot)
			{
				out_str("No data plot in layer, nothing to move");
				return false;
			}
			TreeNode tr1 = tr.InsertNode(tr1stPlot, "Junk");// tagName does not matter, will be replaced later
			tr1.Replace(trTemp.Clone());
		}			
		return true;
	}
	return false;
}



void test_mv_plot(int nPlot, bool bRegroup = false)
{
	GraphLayer gl = Project.ActiveLayer();
	if(!gl)
		return;
	Tree tr;
	bool bWasGroup = gl.UngroupPlots();
	gl.GetLayerContents(tr, GETLC_DATAPLOTS);
	
	if(dataplots_move_row_to_bottom_top(tr.FirstNode, nPlot))
	{
		gl.AddPlots(tr.FirstNode, ADDPLOTSFROMTREE_EDIT);
		if(bWasGroup && bRegroup)
			gl.GroupPlots(0);
		
		gl.LT_execute("legend -s");// this will force the legend to update
		gl.GetPage().Refresh();
	}
}