Okay, it's likely faster to post here than to open a case with tech support.

I created a simulation, then decided I wanted to add some split lines for applying restraints, so I made a "simulation" configuration.  How do you change which configuration a simulation is using?  I know if you duplicate or create a new simulation you can pick which configuration to use.  But I clicked all over and couldn't find a way to change the configuration used by an existing simulation study.  Is the only way to duplicate it and change the configuration on the duplicate?

It seems like a simple task but I can't find anything in the KB even.

Hints?