- go to the rss setup page in admin
- create a new export and give it an appropriate name
- choose the node that contain elements you want to export and what class types to export. Any elements published as children of this object will be listed in the rss export if they are of the correct class.
- Add as many node exports as you like - publish the rss export. Try it by clicking on the link. Depending on your browser you will get either XML output or a nice list of the rss exported content. If there is no content the page will be empty.