• Select the object, go to “Modify>Break Apart“

Example  in Fig 1, the dotted circle means the object is broken apart.

Fig 1

Step 2

• Click on the first frame and, and click on the “Tween” drop down menu and select “Shape” in the “Properties” toolbar below, as show below. (Windows>Properties)

• Right-click on the, let’s say.. the 15th frame, and select “Insert Keyframe” as shown in Fig 2 on the right.

We’re going to see an arrow with green background connecting the first frame with the 15th, as an indication there’s “Shape tween” between the 2 keyframes we made.

We have a  “Shape tween” now, but.. how are you going to see the change in the shape while both keyframes have the same shape of an object? Therefore, we are going to change one of the objects, let’s say the second one on frame 15, and place a square instead.

Fig 2

Step 3

• Select the 15th frame (Fig 3), and press “delete” on your keyboard.

• Make sure the selection is still on the 15th frame, now draw any other shape other than the circle, let’s say a square.

• Got to the “Control” menu, and select “Test Movie“. We`re going to  notice the animation going in loop, just like in Fig 3.

Fig 3Step 4

• To stop the animation when it reaches frame number 15, which is the end of the movie, right click on the 15th frame and select “Actions”

• In the left column, under Actions>Movie Control, double click on “stop”

• Test your movie, it should stop when the animation ends, unlike Fig 4