Adobe FLASH CS3 PRO User Manual page 254

Select the last keyframe in the tweening sequence. The ending shape hint appears somewhere on the shape as a
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green circle with the letter a.
Move the shape hint to the point in the ending shape that should correspond to the first point you marked.
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To view how the shape hints change the shape tweening, play the animation again. To fine-tune the tweening,
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move the shape hints.
Repeat this process to add additional shape hints. New hints appear with the letters that follow (b, c, and so on).
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View all shape hints
❖
Select View > Show Shape Hints. The layer and keyframe that contain shape hints must be active for Show Shape
Hints to be available.
Remove a shape hint
❖
Drag it off the Stage.
Remove all shape hints
❖
Select Modify > Shape > Remove All Hints.
FLASH CS3 248
User Guide