Dynpro technology has long served as the basis of reliable, user-friendly SAP GUI interfaces, and will continue to have a presence for years to come as the next-generation technique, Web Dynpro, matures as a technology. This article goes beyond the basics of dynpro programming to explore some advanced techniques for enhancing your dynpros and writing better ABAP programs to support them. You will learn how to combine classic dynpros and custom front-end controls to incorporate more complex GUI elements, such as trees and viewers, and how to work more effectively with dynpros in your ABAP programs in order to achieve robust dialog programs without much effort.