//prepare Book1 as source and new another book and run mm
void mm(int nCol = 0)
{
	WorksheetPage	wkbk = Project.Pages("Book1");	
	Worksheet		wks = wkbk.Layers(0);	
	Column			colSrc = wks.Columns(nCol);
	Worksheet	wksDest = Project.ActiveLayer();
	Column colDest = wksDest.Columns(0);	
	colDest.SetAsMirror(&colSrc);
}