Animate a Sky　【Tutorial Movie】

Animate a sky (cloud). Here we make particularly not detail settings but rough settings to explain simply how the object works.
Now click and drag the time scrubber to the left until the Scrub Time shows zero.
Click the Add keyframe button and set a keyframe.

Click and drag the scrubber to the right.
Click the Add keyframe button and set the keyframe.

Move the scrubber, and you can see the cloud move in the Nano Preview screen (In default move from the left depths of the screen to the right front).