Add-on Rss addon for specific category only

[Justauser]

Hello. Is there any addon that can enable rss on a specific category on board but disables global rss and other categories and rss? Just need it for a specific category to work with rss and disable rss on everything else. Also would be nice to have some key type thing so only registered users can use the rss and no one else. Pls help me out here. Thanks.