Graphic Symbol Basics
Flash CS3 Tutorial
How to Create a Flash Graphic Symbol
Graphic Symbols are similar to Movie Symbols in that they have a timeline. A Graphic Symbol can have one or many frames.
The main difference between a Graphic Symbol and the others (Movie and Button) is that a Graphic Symbol can not be given an instance name and used in ActionScript.
Graphic Symbols are timeline dependent and Movie Symbols are not. In other words, you can place a 10 frame Movie Symbol on the main timeline. If the main timeline stops at the frame where the movie is added, the movie will still play.
A Graphic Symbol with the same duration would require that the main timeline be allowed to move forward at least 10 more frames while the symbol is visible.
Add a rectangular object to the workspace with the Rectangle tool (r key).
With the rectangle selected, press F8 (Modify > Convert to Symbol).
In the dialog box, name your symbol and choose Graphic for the symbol type.
The newly created symbol is added to the Library.
Once you have created a symbol, double-click the symbol with the Selection tool (v key) to edit the symbol timeline.