I've had such an utility in mind for a long long time.
Use case : When I start coding a new project, one of my first task is to create all the typedef clusters that will be necessary to store configuration settings, then I create VIs to read/write these "section cluster" from/to INI file (based on OpenG read/write section cluster).
All this clearly can be automated.
Using the following list as inspiration sources, I started to develop such an utility as a sandbox plugin. I'm planning to post it here sometime soon.
Before that I was wandering if anyone thinks this would be useful for them :-o
Inspiration list :
the RCF plugin that creates a typedef cluster from a cluster constant,
the create polymorphic VI example from the code repository
vugie's scripting sandbox RCF
PS: I have a video to show what it does know but it's too big to be posted here, I'll find a way to share it very soon.