How to add Enemy Bots?

Hi,
I’m new to UE4 and I use UDK for my games. I have a question, how can I have enemy bots in my games Like UDK? In UDK I just use some relations in kismet and I have my enemy bots. but how it works in UE4? I already downloaded shooter game sample but I don’t know how to have enemy bots. please tell me if you know …