How to mute notifications on macOS Sierra? Before macOS Sierra I could do "alt + mouse click" on notifications icon (placed on the top right corner of screen, on the menu bar).

It doesn't seem to work on Sierra. How to mute notifications on Sierra?
⌥-clicking on  works fine for me in macOS Sierra, but you can also enable Do Not Disturb by opening Notification Center, scrolling up and sliding the switch to On.