My team and I work remotely and as part of that benefit don't always stick to business hours. I haven't figured out a non-tedious way of letting users know when we're online or offline.

For now I'm the only one handling the chat, and if I have an appointment, different working hours that day, etc., I manually change the business hours for that day, and the next day try to remember to change them back. 

Is there some easier way to adjust the online/offline status? Like, if I have the tab open I'm online and if it's closed I'm offline. Or is there some desktop tool that makes it easier? Am I missing something? I'm in a trial right now and this feels like it might be a dealbreaker.