I could probably add something like that to KUP if you want, but note that the way things work, one would have to load the entire page as usual and then hide the respective articles. This means that you could potentially in the worst case scenario get a bunch of empty pages until you actually get to see more content (or more likely, pages with very few articles).
With infinite scroll loading turned on, this could of course be a bit less cumbersome, but still not exactly an optimal experience.
Would that be an acceptable compromise? If so, I can see if I can get something done over the weekend. I'm currently tinkering with a somewhat related feature, so I could probably fit this in too.