Peek and Pop not an option

Question

I'm trying to implement Peek and Pop into an app. There's only one issue- I don't have the option with my current segue setup:

What am I doing wrong, and why do I not have this option?

Answer 1

How are you establishing your segue? This is poorly documented, but setting up 3D Touch segues from a Storyboard appears to be unavailable if you're using a Manual Segue (controller to controller) versus an Action Segue (object to controller).

To illustrate, here's a Manual Segue with 3D Touch segues absent:

Here's an Action Segue with 3D Touch segues present: