1. Graph > Profiler
2. Y --> Y, Prediction Formula
3. Click on red triangle button next to "Prediction Profiler"
4. Click on Desirability Functions
5. Alt-Click the upper right hand box
6. Click the Maximize Button and change to Match Target
7. Change the Values to 20, 0, and -20 (for High, Middle, and Low)
8. Click Ok
9. Click on the red triangle button next to "Prediction Profiler"
10. Click on Maximize Desirability
At various stages you may want to fiddle with the axes to more clearly display what is going on.
