It is actually possible to preview text/image/video topics directly from the topic list. But could it be possible to preview comment too directly from the topic list ? Sometime, you don't want to open a topic just to see if comments are interesting or not, so the ability to preview the comment tree can be useful. If you open the comment tree, the rest of the topic list jsut go down until you close that comment tree.
Maybe even respond to that topic from there.
An image to better understand what I mean : https://i.imgur.com/xuhgVbu.jpg
What do you think ? Is this easily doable ?