Do you have any suggestions with a ColdFusion app of how to add a horizontal line at a specific point (the recent low in this case) to the right side of a chart?
// Add a mark line at y = 47100. The line color is transparent when x < 13.8 and
// 0xff66ff when x >= 13.8.
c.yAxis().addMark(47100, c.xZoneColor(13.8, cd.Transparent, "0xff66ff"));
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(Tom Nunamaker) 
How to add a horizontal line?