How can I add multiple RSS feeds to my web app?

I’m building a simple JavaScript web app in Dashcode as a Computer Science project. I’ve managed to create a stack layout with a list of buttons linking to the standard ‘feed reader’ template provided with Dashcode. However, I would like each of these buttons to lead to a different feed, within the same app. In the application attributes section, only one feed can be added, so I was wondering if anyone might be able to give me some advice in regards to how I could add more than one feed. Thanks :)