To separate articles by category type in Articles (CMS)

It would be great if we could get the categories to appear in separate sections within the CMS Editor somehow. For example, on ProspectSoft's site, I've added LOADS of articles - some of which are for our Blog page, some of which are for our Releases page, and some of which are for our News page. As you can see from the screenshot attached (scrolling bar on right shows how long it goes on for), the list is quite long, and can become tricky for people to sift through. It would be good if you could almost have 1 list for each 'category' i.e. all Blogs appear on their own, then you could move across a tab or something to view the articles for Releases.