LockedScreen updates your slack status automatically when you lock your screen. It will also restore your previous status when you unlock your screen.

Create creative statuses for different times of the day and every time you lock your screen your peers will instantly know that you are away from your desk.

Create on demand statuses for your peers to see when you are working on something important and don't want to be disturbed. Lock your screen and your "On Demand" status will be honored until you manually change it or clear it.