Change part being rendered in Page extension

I am working on a page extension and need to change the part that is
rendered within the extended page class. Is there an easy way to do
this that I am not finding?

Thanks!

James Thompson
IT Director & Web Programmer
Stewart & Associates, Inc.
550 West Kentucky Street
Louisville, KY 40203
(502) 583.5502
[email protected]
http://www.stewartaa.com/