>So, how to do this? How do I control the class editor to tell it which page of a pageframe to bring up, and which control on it should be selected. Or, alternately, how do I set the value of the top combo in the PEM window?
To add to what Cetin said, SetFocus works for a lot of controls, but not for all of them. In some cases, you have to use the MOUSE command to simulate a click on the desired control. Even then, there are some situations where you just can't get it to work.
I went through this building my Control Renamer:
http://msvfp.advisorguide.com/doc/16679Tamar