Earlier quoted context omitted.
You can set yourself to Do Not Disturb mode, which is kind of the same thing. Notifications are muted and the sender sees a 'Zzz' symbol next to your name. If someone sends you a direct message they have the option to interrupt you if it's really important.
> Notifications are muted and the sender sees a 'Zzz' symbol next to your name. That's a minor thing but 'Zzz' really sends the wrong signal to the sender: if you are not available, then you are sleeping (i.e. unproductive).
Working remotely, is that a bad thing? If you are unavailable due to deep coding or a need for a nap does it matter?