Some questeions what is included ?

[_Aka_]

You add a script that contains the code I already wrote you in this previous post:

Hi,
To give you an example of code linking inputs to Curvy:

Code:

//Set the moving object's speed
splineController.Speed = MaxSpeedParameter + Mathf.Abs(Input.GetAxis("Vertical"));
//Set the moving object's direction
splineController.MovementDirection =  Input.GetAxis("Horizontal") >= 0 ? MovementDirection.Forward : MovementDirection.Backward;

As you can see, it is very simple code. The controllers (script that move objects) have the needed properties, you just have to fill them accordingly to the user inputs.
More about controllers here: https://curvyeditor.com/documentation/controllers