In Dreamweaver, there is a "code snippets" panel, which allows coders to store, and insert, frequently used pieces of codes.

Daniele Ugoletti has been working on an extension for Flash MX 2004, called "Flash Snippets". Installing the extension will add the following panels:

Snippets
This panel allows the developer to store and retrieve pieces of code, organized in folders.

Package Browser
This panel shows all classes available in the Flash IDE. The methods for each class are also shown. With a click, the developer can add the function call in the code, or add the import command for the class.

Class Browser
The developer gets an overview of the class being edited - all functions, getters and setters are highlighted.

More information from Daniele:
http://www.ugoletti.com/blog/archives/2004...-flash-snippets