Why can't I find silent with one press

[AC Question]

I have allowed my MotoX android to 'system update' and now I can't find how to silence it, whereas before I just held the button on outside of phone and 3 options came up "off", "aeroplane" or "mute". It's like having a new phone not knowing where anything is, I wouldn't have updated if I'd have known!. Can anyone help please?

 

[B. Diddy]

Welcome to Android Central! Which Moto X version, 2013, 2014, or 2015? What Android version did it update to?