Generator can dynamically insert and modify movie clips and graphic symbols when processing a template. You can replace a symbol with a different symbol from the library, or change the color of a symbol based on values provided when the template is processed. For example, if you are creating a temperature display, you can use the Set Tint command to change the temperature text color to red for warmer values or blue for cooler values.
Symbol commands are applied to symbol instances (either in the main timeline or in child timelines of movie clips or graphic symbols stored in the library). Therefore, Generator's symbol commands are available in the Generator inspector only when a symbol instance is selected.
See Using Flash for detailed information on creating symbols.
You can apply only one symbol command at a time to a symbol instance. If you need to use more than one symbol command, such as Transform and Set Alpha, place the original symbol instance inside a movie clip or graphic symbol. Nesting this way allows you to apply a symbol command to the original instance inside the new symbol and another command to the instance of the new symbol on the Stage.