autoLayout in Xcode 6.2

Question

I am following video swift programming language, today I saw the option about autolayout, as you can see in the picture; then I get an application I already had (the orange buttons) but I can't see the icons of the autolayout under the image.

Answer 1

do you enable autolayout for your old app? - check File Inspector on the right panel, check Use Autolayout checkbox