I apologize if this already exist, but i could not find it.

My question is, is there a **real-time** display next to the user question if that user is still on line or not.

Something like this (green circle) next to the OP info.

![on line][1]

Having that information might help in posting comment and asking for information or clarification on the OP while the user is still active. Otherwise posting a comment might not be seen for long time, and it slows down the Answering significantly. Most OP ask a question and then after a while without comment or answer just walk away (been tired of waiting for a respond). I find it convoluted, when posting a comment like a hour later, then not getting a reply for days.


  [1]: https://i.sstatic.net/M1N6W.png