Anyone figured out how to access the last post read in a long thread yet?

I'm getting comfortable with finding topic threads of interest but haven't yet figured out the equivalent of the pencil icon on the old forum that let us navigate directly to the last post read in a topic. Is there a way to do so here yet? If not, is there a way to change the sort so most current posts are first rather than last in a thread? I checked preferences and profile and my account links at the bottom of the page and didn't find anything.

Thanks!