Substance blueprint set input Vector3

I was following this tutorial for using blueprints with substance but I was trying to get this to work with an offset 3d texture. I created the input. I can manipulate it manually in unreal. But I don’t know how to access it in a blueprint. I can see it as an input when I print out a list of input names.
Because of the parameters for this settings I imagine it would be classified as a vector3. (x y z)
I am stuck doing a set input float.