How to display elevation points at given distances

I am wanting to do what was posted(June 2017) copied below. Being a newbie using 22.1, I need more detailed steps than were given. 
I did the Create Layer Coverage Box/Polygon Area. It made a box, but no elevations displayed. 

1) is it possible to generate an array of points from an elevation grid, at a given distance (i.e. 20m between rows and 15m between lines)? The command "Create Layer Coverage Box/Polygon Area Features" creates points but doesn't allow to choose the spacing in between.
2) once solved the previous point and having the points with x,y and z from the elevation grid, is it possible to display on the grid only the points elevation? See reference image, in which points were created with another software.


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