Specs line on a trend

Discussion created by kdsingh on Jul 1, 2014
Latest reply on Jul 6, 2014 by kdsingh

How can I include two straight lines (Upper and Lower Spec) in a trend? I want to see full range of the variable in the trend and not limited to my specs. I want to track for how long was the variable beyond those specs. It'll be convenient if I have the two lines representing the two specs and don't have to read the scale every time its off the limits.