Test scripts with preview mode and full source-level script debugger

For easy error analysis, step through your code line by line with the script debugger. Any break points you set in the Script Editor are supported in the debugger. As you work, you can see how your code will run in the Flash player, by using the Preview mode. And if any problematic code is encountered, Preview mode automatically launches the script debugger to isolate that code. See the LiveMotion 2.0 Scripting Guide.