While you can change which groups some parameters appear under in the family editor, I don't believe you can change the order they appear.
If you would like this functionality added to Revit, this link is setup for you to submit feature requests, or feedback, directly to our Development group.
I encourage you to use the feedback link as our Development group is always interested and would like to hear your feedback directly, since you are better suited to state the business case for a feature request.