How do you write a CATIA CATScript Macro?

A question I often get asked is "how do you create vba macros in Catia?" One solution is to write a script. No, not a script for a movie, a CATScript file! To create a CATScript macro for CATIA open Notepad and write your code, then save the file with whatever name you want and type extension .CATScript instead of .txt. Here is a simple CATScript you can use as an example. This CATScript will