I have a MacBook, and I need to have a way to send an automated reply to all iMessages when I'm at work or doing a certain activity. For example, when I'm working, I want a message that could say something like "Hey, I'm busy. Will come back to you later when I'm done." to automatically be sent. Is this possible? I need it hugely, because I receive a lot of messages from friends and family while I'm working, and I can't respond to them. So I need the laptop to send them automatically.