Copy to Grid
Flash CS3 Tutorial
How to Arrange Flash Objects in a Grid Pattern
Using the Copy to Grid feature you can quickly duplicate your original shape and organize the new shapes in a grid pattern.
Add a rectangular object to the workspace with the Rectangle tool (r key).
With the rectangle selected, choose Insert > Timeline Effects > Assistants > Copy to Grid.
In the dialog box, input values for the Grid Size and Grid Spacing.
Click the Update Preview button to see the changes before committing to a layout.
Once you are satisfied, click OK. A new graphic symbol is added to the workspace.