Playback Options

The Playback options, located next to the Range Slider, let you change settings regarding animation playback, such as frame rate, looping, and Auto keying.

A. Framerate menu B. Loop C. Auto Key D. Animation Preferences

Framerate
The Framerate menu lets you set the scene frame rate in frames per second (fps). It displays the current frame rate.
Note: Once you set a frame rate, it changes everywhere in Maya, whether in the File Open options, Preferences window, or Time Slider. When you save the file, the frame rate is saved with it.
When you change the Framerate, it updates once the animation has completed a cycle or you restart it.
Loop
Click this icon to cycle through 3 animation playback states:
Continuous Loop
Repeats the play range on playback.
Play once
Plays the play range once.
Oscillating Loop
Loops the play range forward and backward.
Auto Key
This icon lets you turn on Auto key mode. Autokey lets you automatically set keys on attributes as you change the current time and attribute value. See Use Auto Key for more.
Time Slider Preferences
This icon is a shortcut to Time Slider preferences, which let you set how you want key ticks, and time to show on the Time Slider.