Step 2: Choose which RSS Feed you wish to either change or delete and press either the Edit or Delete button
Step 3: If you are editing the RSS Feed then you will now see the Update RSS Feed Dialog box as you did when you created your RSS Feed and you can now make any changes you want and press the Update RSS Feed button when finished.
Using this update feature is really cool as it lets you change the Brand, Call-To-Action or design your using on your RSS Feed at any time. It also lets you add new retargeting/tracking pixels to your feeds (what is retargeting?)
Done! Now you have now made changes to an RSS Feed.