That is what I want to do, but you can't even do that well now. Facebook is pushing so much content onto the "comment window" (which used to be on the sidebar) that the comments I am interested in "scroll away" so far and fast that you simply often cannot even find a comment topic you have interacted with.
...the comments I am interested in “scroll away” so far and fast that you simply often cannot even find a comment topic you have interacted with.