After reading other posts, I finally can import points using ImportPoints, but I can't do much with them. In particular, I want to create contours, but that and half the other choices are greyed out all of the time. I can create triangles, but that's about it. What's the secret to getting the functionality promised by the add-in? I'd also like to see the notes and/or z-data adjacent to the points (but preferably on a different layer). Is that possible?