Copy RSS folder in Internet Explorer

I usually browse the internet and subscribe to the RSS feeds that I like the most and it will automatically go into my Outlook. I really like this feature and it works great with me. I also grouped those feeds according to their categories and topics. But when browsing the feeds in Outlook, it appears with a long list which I need to categorize again. How can I fix it? Is there any way that I can make Outlook copy the folder of my created feeds in Internet Explorer? Thanks.
