12d Model

If you don't care that you have a bad polygon you can right click on the polygon icon and select Toggle checks. This will allow you to ignor any errors, which can be dangerous.

Owen when you see a random post like the one above, have a look at when they joined and where they are from.
There has been a few hacks on the user forum, they usually grab a comment from somewhere else on the forum then post it in another topic.

Do you get Vis in practice Version?

Nice Carl. But you could skip a few steps. The points don't need to be in different positions (x,y). They just need to have the top and bottom Z you want. 1. Convert points to lines (Utilities A - G Change) 2. Join Top and bottom points together (Utilities A - G Head to tail) (2d 0.001 tolerance) 3....

You may have the text toggled off. On the view have a look in the toggle button which looks like a blue tick and cross.