title: Interface Builder not showing peek and pop options for segues
body: <p>I want to add 3D touch functionality to my app, but Interface Builder is not showing the options for peek and pop. Neither for action segues</p>
  
  <p><a href="https://i.stack.imgur.com/hDDzj.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/hDDzj.png" alt="The attributes inspector showing an action segue"></a></p>
  
  <p>nor for manual segues.
  <a href="https://i.stack.imgur.com/JuZIC.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/JuZIC.png" alt="The attributes inspector showing a manual segue"></a></p>
  
  <p>My development target is iOS 9.1 and I'm using Xcode 7.2 (7C68). What gives?</p>