Hi russty63,
I apologize, I'm a bit unclear on exactly what you are describing or looking to do. If you simply change the info associated with your current Apple ID (like, for example, the email address), then all purchases and information are retained. On the other hand, if you actually create an entirely new Apple ID from scratch, there is not a way to transfer purchases or info from one Apple ID to another. The article you linked from has the best info on changing your Apple ID, but you may also find the information outlined in the following articles helpful:
What to do after you change your Apple ID email address or password - Apple Support
Frequently asked questions about Apple ID - Apple Support
Regards,
- Brenden