Sorting by date inside a post

One of the Admin of a server that I frequent has a single post that he adds to on a consistent basis. When he does that they are separated by date and each post has a time stamp. Unfortunately that information is sorted by oldest date first which means it displays the oldest posted information when you click on the post. This causes me to have to scroll all the way down to the end of the post to see the most current content. Please consider and a function that would let the admin choose you to display the newest content first.