I Have a Suggestion for Similar Worlds

If we're about to be occupied for a short while, can there just be a thing that says that out account is busy? Or have a status that says "brb" or "gone fishing"? I know the green light thing shows wether you're online or not but I'd like to leave a message saying why I'm offline that my friends will automatically see just so they're aware of how long I'll be gone or when to expect me back online. Sound good?