NX Product Templates: How does the "Part Family Refinement" control work? [NX 2212]

I've had a few questions about the "Part Family Refinement" control inside Product Template Studio and Product Template Author. This is not a new control, but it's certainly less used than many. With that said, it's quite useful when you need it!

Fundamentally this is a UI control to help your end user in cases where you as the author have added criteria to automatically select Part Family members within your Product Template, but you've not added enough criteria to fully refine the part family member selection down to just one child. When you've "got it right," the control will confirm that fact for you and your end users. In those "ambiguous" cases, this control will give users the option to choose from among any of the part family members that do meet all of your criteria.

...and yes, sometimes it's just easier to see it than to read about it. I hope you find this useful!