Getting rid of pitch in the "flight" blueprint.

So as you probably know, when you make a new project you can select a starter project to build up from. One is called flight, in which you pilot a little UFO around.

What I am trying to do is remove the pitch axis of this vehicle and replace it with a simple ascent and descent, so that instead of flying like a plane, the craft flies more like a helicopter, or more precisely, a hot air balloon.

I was hoping that one of you more experienced with blueprint could suggest a way to do this. If you aren’t familiar with this blueprint I have images of the relevant parts here.

On second picture. Move current pitch speed from rotation to node where you add speed.
Add it to Z value multiplied by delta seconds.
And rename variable to something about speed not pitch anymore.