Instances

To refer to the certain instance of the symbol on the stage it's necessary to name it
Instance names may be given to movie symbols, buttons, input and dynamic texts. Instance names cannot be givent to drawings and graphic symbols
To refer instance in the code we user it's instant name. Instance's methods can be called and properties can be changed through the code
To create "live" buttons and "toolbars" you may use a combination of the button and movie symbol which animation is triggered on button's event