How to stop an Animator.State in an Additive Layer

I have 2 Layers.
Each one has a 100-frame state animation looping.
Second layer is Additive.

I wan't to loop state as default in layer 1, and set the frame AND STOP THERE in Layer 2.
Setting the frame is this:

Code (CSharp):

1. GetComponent<Animator>().Play("Pose", 1, setFrameFloat);

The float setFrameFloat is 0 to 1 and works wonders with the 100-frame clip of the State.

But, how do I stop it there???

The speed property if set to 0.0f freezes the whole animator, not just the particular State, in the particular Layer.
I'm using 2017.1.0f1

NEVERMIND:It works the old way.