I don’t know how to explain this because I don’t know what it is, how it works and how to activate it.
Sometimes when I was reading a story if I clicked on the edge between the story list and the story I was reading there was a small arrow icon, I think, that was placed in the position the cursor was.
I always activated it by mistake, and did not know how to remove it or what it did. I believe it was an indicator of where one stopped reading in a story if he wanted to continue later?
Anyway, it’s been some time I was not able to make this '“thing” come again. Is it a feature that was removed?