 <p>The cross section is just a line graph (or two) overlayed on your original chart.</p> <p>Here's an example of overlayed charts:</p> <p><a href="http://www.sqljason.com/2012/03/overlapping-charts-in-ssrs-using-range.html" rel="nofollow">http://www.sqljason.com/2012/03/overlapping-charts-in-ssrs-using-range.html</a></p>