If I understand you. That feature is not available in a stock version. This would be a modification to the scripts. Which would come at a cost if feasible. Where as far as I know there are only two people that provide that service now. Gizmo SD This is the user name they are known as here.
But you will need to elaborate on how you want this net new feature to work.
This site does not really support modifications to the code..
Blue Man Group There is no such thing as stupid questions. Just stupid answers
This may not seem as complicated as it actually is (since sites like Facebook have such implementations), but this feature would not be feasible for this product at this time due to the type of coding needed.