static mesh: how to add socket to the weapon

Development Programming & Scripting Blueprint
1

Hello, guys.
In UE 4.5 there was an option in static mesh editor where I can add socket to the gun.
But In UE 4.6 I can`t find this option. I have switched on sockets menu, but there no option to add socket.
Can you help me.

2

Sorry, I forgot about menu item in Window menu.
Question closed))