For anyone out there trying to do complex repeat regions relations on a part drawing, three new report parameters have been added to Creo Parametric 5.0 that will make your lives much better! These really open the doors to doing some pretty cool things that simply couldn't be done before on a part level drawing.
Here is the official help documentation link:
Cool! Thanks Tom,
Works with asm.mbr.UserDefined as well (to show a part model parameter in an assembly Repeat Region).
This is powerful so it's a mystery to me why the documentation (or lack thereof) keeps it a mystery.