Optimization and Generic Parts
When you optimize a generic part from a family table, the dimension changes Creo Simulate makes can affect other family members. For example, if you optimize the thickness of a generic plate and thickness is not a table-driven dimension, the other parts in the family undergo an identical change in thickness.
If you plan to optimize a generic part, review the family table to make sure you understand which dimensions are table-driven. Make sure you want Creo Simulate to change all instances of a particular dimension before creating design variables that use the dimension.
Pay particular attention to table-driven dimensions that do not have values assigned for each part instance. In cases like these, Creo Simulate changes all part instances except those that have predefined values.