Let others know your status
You can choose and set your online status to - Online / Away / Busy.
Brosix automatically checks and sets your status to Away if you do not work with your computer for a while. This way your colleagues will know you are not at the computer at the moment and you cannot respond to their quiestions.
Set your status to "Busy" to tell you friends and colleagues you are busy right now and would not like to be disturbed.