1 FPS in Unity Timeline

I'm trying to create an animation that plays at 1 FPS. I changed the FPS settings in the Timeline asset w$$anonymous$$ch changed my frames appropriately. Then I animated the position of a cube on the timeline. The problem is, playback isn't really 1 frame per second. It smoothly animates from one frame to the next, w$$anonymous$$ch is not what I want. I want to jump from frame to frame.

Any idea of how to do t$$anonymous$$s with Unity's timeline feature?