Deformed Mesh=> Add

public static DeformedMesh Add_DeformMesh()

Example:

//Create a spline plus game object at Vector3.zero
var sPData = SplinePlusAPI.CreateSplinePlus(new Vector3(0,0,0));

//Add a deformed mesh component to the spline plus game object and set its type to deformed mesh
var deformedMesh = sPData.Add_DeformMesh();