How do I show stresses from other section points than top and bottom?

[JoeBobJenkins]

I added in my field output (surface shell elements) the section point 3 of 5. Problem is I'm not sure what I need to do to get the principal stresses from this point to show on screen.

 

[Mustaine3]

When you've requested that output in advance in Field Output Request, then you can display the available section point results in postprocessing via
Result -> Section Points