How to find the minmum and maximum point of the selected surface in NX8?

I have created the surface (wave kind of)in NX8.Now I want to create points at the minimum and maximum level of the surface.
2 Answers
follow the tutorial
:)
Answered with a tutorial: https://grabcad.com/tutorials/how-to-find-the-minmum-and-maximum-point-of-the-selected-surface-in-nx8