Change type of a component in Matisse

Is there a way to change the type of a component when using Matisse in NetBeans? I would like to switch a standard JDes开发者_开发技巧ktopPane to my own extended version. Thanks!

all visual Components for Standalone Application(s) in Java are based on Swing,

You can change the type outside of NetBeans using a text editor, change the .form and the .java. Here is a similar question in the NetBeans forums with some answers.