[kamocat]

Ian,
I looked at some videos for skeletal modeling and sketch blocks. I learned how to link parameters between parts, but that's not really what I was asking.
Is there a way to take a single part and slice it into several parts?
In LabVIEW I can select a piece of code, go to "Edit > Create SubVI", and that piece of code is moved to its own file, but stays in place and connected to everything around it. Why can't I do that here?

Jesse, are you saying you make rough prototypes to work out the geometry, and then constrain your actual parts to those prototypes?

The reason I want to convert a prototype part into several actual parts is that deleting a part and replacing it with another (and redoing all the constraints) is often messy and time-consuming.