What hooks up inputs to movements in the Blank template?

Hopefully this is the right area of the forums, as none really fit.

As part of trying to learn UE, I’m trying to figure something out. When you create a new project using just the blank template and then run it, there are already keyboard, mouse and gamepad inputs hooked up to moving/looking around. Where is that actually located? I can’t find a blueprint with that actual code. Say I wanted to tweak some of it, where would I go? Or if I wanted to override just part of it (like have the thumbstick controlling the camera work different somehow), where could I drop in my control to change it? I’ve played with creating my own game mode/controller and still can’t quite figure it out.

Thanks!