The Instantiations Forums are one of the last artifacts of the former Instantiations that is still shared by the current Instantiations and Google. To break this linkage, and to reflect the fact that WindowBuilder is now an open source project at Eclipse.org, and GWT Designer is now embedded in the Google Plug-in for Eclipse (GPE), we are moving all new GWT Designer related traffic the existing Google Web Toolkit group.
Any questions about the WindowBuilder open source project upon which GWT Designer is based (e.g., how to add widgets, extend the editor, create new properties, etc.) should be posted to the new WindowBuilder forum at Eclipse.org.
After May 27, 2011 no further posts will be accepted to this forum, so we encourage you to start using the Google Web Toolkit group or WindowBuilder forum immediately. We do plan to make the historic content of this forum available in a read-only, searchable format after that point.