Animation location offset

I currently have a jump animation which is motion captured, and what I want is a way to adjust it’s height so that it’s not actually moving up, as when it does that at the same time as the capsule moves up, it looks wrong.

In a presentation something similar to this is referenced here: Paragon Feature Examples: Animation Techniques | Feature Highlight | Unreal Engine - YouTube

When he says the curve is used to ‘back the rotation out of it’ - I assume that’s what they’ve done, taken a motion capture animation of someone spinning around, then since the capsule should control that, removed or manually adjusted the animations rotation with the curve somehow, I want to do the exact same thing just with height.

Does anyone know how they did this, or have any ideas on how else you could achieve this effect?