CasaDelGato,
MyEclipse as such doesn’t support eclipse rich clients development. I mean we do not do anything extra nor have any extra features in our toolset that would support eclipse rich clients. However we don’t hide the Eclipse platform’s PDE(plugin development environment) wizards and capabilities and they should be available for you. You can develop eclipse rich clients using them just like how you would using a standalone eclipse install.
As an aside, for swing development, we do have the Matisse4MyEclipse toolset that offers drag n drop, palette functionality for developing swing rich clients.
Hope this helps.