Timeline

Adjust how the Timeline interacts with the Play button, and how it treats new keyframes.

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Select from different playback modes:

1. Loop - continuously loops the movie, from start to finish

2. Ping Pong - reverses playback when the Playhead reaches the end of your Timeline, and infinitely loops back and forth.

3. One Shot - plays through the movie once only.

Keeping this toggled on means that when you create a keyframe past the first frame on a piece of content, another keyframe will be added at the very beginning for you.

For example:

1. imagine you have drawn a ball and are adding a Move & Scale keyframe midway through the ball 'Drawing' on the Timeline.

2. you reposition the ball with this keyframe so that the ball is lower, like it's falling.

3. with 'Add keyframe at start' ON, a keyframe will be added at the start of the Drawing so that you immediately have motion from its original position above to the lower point you have just added.