Is There Any Possibility For This Please?

Hello there Ultimate Member Team, how are you doing today,trust you’re fine? Please it’s pressing, I’m creating a Community website for a client and they ask that I make the users online profile always have the little green dot icon indicating users are active online even when they’re offline to encourage more users to stay active , please if there any possibility to help me achieve this, honestly I’m for the first time confuse on how to possibly achieve this ?? any snippet will be very much appreciated Thankyou in advance