Control Designer - RadEditor

Are there any existing examples on how to add a RadEditor control to a custom control designer?

I see there is a HtmlField control I could use too, unfortunately there are no good examples of having either controls on the control designer for a custom control.

Any help would be mucho appreciated

ANSWER

http://www.avisra.com/blog/2011/05/22/sitefinity-control-designer-fields/