Note 85: Oddly enough there doesn't seem to be a way to connect a delegate driver toa main driver in the dbExpress Configuration Editor in the IDE. However, as soon as you (manually) add the DelegateConnection to the configuration file, you'll be able to modify it using the Configuration Editor.
This blog post is part of my "113 Delphi 2007 Handbook Notes" blogging project, to promote my new Delphi book.