Feature Proposal: Select/Whitelist People Who Can See You Online

I often find that I keep my status on "invisible" so that certain people do not bother me when I am really not in the mood to talk to them. However, I understand this also discourages my friends of whom I do wish to recognize I am online and willing to talk to from messaging me.

If possible, I would like to see a feature to select specific people of whom can or cannot see my actual online status. For an example, say P1 has knows two people: P2 and P3. While P1 enjoys speaking to P2 and is incredibly open to talk to and allow P2 to talk to them, they are not as willing to talk to P3, who tends to bother P1 on a rampant basis whenever they are online, though P1 still does recognize P3 as a friend and doesn't wish to straight-up block P3. With this feature, P1 could make it so that P2 can still recognize that P1 is online whilst also making it so that P3 still sees P1 as offline/invisible.

Thank you for listening to my feature proposal.