XF 2.3 Would it be possible to add a "new messages" indicator to where you left off a thread last time?

[zzlpolitics]

My users came from a forum software that is absolutely awful. But, it did do a few things that actually made a little sense to me. Like the attached where when you click on a thread you had previously been reading, there is an indicator after the last reply you'd seen and indidcating all the new ones below it. I know that XF takes you to the last post you were looking at when you click on a thread but even I sometimes lose where I was or what posts are new since I was last there.

Anyone seen this/thought of this/etc.?

Thanks in advance for any thoughts!