Time / Create Animation
The initial frame of the animation.
Auto Time Range
Sets the frame range to the length of the created animation.
Note that after creating the fragments, their scale will be zero. To do this, go to the curve editor and change the red curve. It is enough to move the left or right point up.
Delete all the fragments in the scene.
U / H Orig
Unhide source object.
Right Click - Hide source object.
Reverse (Start -> End)
Invert directions of the animation from the helper.
Inverts the value from the curve editor.