PTC Creo Parametric 3.0 - Design Automation - ProProgram

This video shows an example of design and assembly automation.
Using Pro/Program to specify some conditions in the program of each part and of the assembly, I'm able to control the specifications of the parts and assembly from an Excel-sheet.
The design automation of the parts run directly (one just has not to forget to save the Excel-sheet to activate the modifications before regenerating the part)
About the assembly, this solution is sadly a little bit archaic. In fact, you have to open and regenerate every single part whose dimensions were modified before opening and regenerating the assembly.... For this task, PTC Creo Options Modeler 3.0 would be better appropriated.