Where is my sample option in animations?

I’m new to Unity and I was following a 2D animation tutorial. It said to edit my samples but I realized that it was not there. Was it moved?

It is visible in the animation window. Window/Animation/Animation. Towards the top of the screen by the play button and to the left of the timing area. Can you provide a picture of your animation window?

I would but when I upload my screenshot, there is a parsing error.