Firstly, let's look at the Struts configuration file (struts-config.xml). Open it in the Source Editor. Now right-click anywhere and notice that... there's a whole new submenu in the contextual menu:
When you choose one of the items, you get a dialog box where you can fill in some values. Then you click OK and the XML is created for you and put in the appropriate place in the configuration file.
Secondly, let's take a look at the the JSF configuration file (faces-config.xml). Same story -- right-click in the Source Editor and you'll see a new submenu with items for common entries in the file:
If you're familiar with the new Palette (described here), you might think: "Hmmm. Wouldn't those items for Struts and JSF fit quite nicely in the Palette? After all, their behavior is the same as for the other items in the Palette." This is true. From what I've been told, that's the plan for the release after the upcoming release.