Not only can Smart Bones be used to correct actions, they can also be programmed to act as dials for all sorts of different events. You can control switch layers, point animation, gradients, and more with a simple set up of bones and objects. For more advanced dials, you may need to check on Allow nested layer control, which is located in the main bone's Layer Settings. However, you more than likely will not have to bother with this as it is checked on by default.
To get an idea of how these complex actions work, open up the work file
SmartBoneDials.anme. Here you will see our familiar green friend. He's rigged up and ready for animation. You will notice that there are additional bones sitting on the outside of the character. These have been made up ahead of time for you to play around with. They will act as dials that will set off different actions. Next, perform the following steps:
First, highlight all the bones outside of the character and check on the Show...