If you are interested in Custom Macro, click BLOG above - then click the sub-heading named Custom Macro. You will find lots of information about parametric programming, as well as several great Custom Macro appplications.
Share your ideas and stories about how you have applied Custom Macro - or any version of CNC-related parametric programming. Ask questions, which I and others will try to answer. In general, improve your understanding of this helpful CNC programming tool!