Featured slider – order of posts

Hello everyone, I use Catch Box as my theme and I'd like to know if anyone has a suggestion for adding additional posts to my featured slider. I like my most recent post to be the first one to load on the slider, but when you add a new line to the slider tool, it adds at the bottom, so I end up manually shuffling all the other post numbers down one line so I can insert the new one at the top. www.inhighdefinition.co.uk There is surely an easier way, right?