What is a hidden tool in flash?

A hidden tool in Adobe Flash is the "Bone Tool," which is used for creating skeletal animations. While not immediately visible in the tool palette, it can be accessed by selecting the "Modify" menu and then choosing "Transform" to find it. This tool allows animators to create more fluid and natural movements by defining a hierarchy of bones for character rigging. It enhances the animation process by enabling easier manipulation of complex shapes and characters.