You can set preferences for many aspects of the workbench. For example, you can specify that Flex Builder should prompt you for the workspace you want to use at startup, you can select which editor to use when opening certain types of resources, and you can set various options for running and debugging your Flex applications.

Your Flex Builder preferences apply to the current workspace only. You can, however, export your workbench preferences and then import them into another workspace. This may be helpful if you are using multiple workspaces yourself, or if you want to share your workbench preferences with other members of your development team.

You can also set preferences for individual projects within a workspace. For example, you can set separate compiler or debugging options for each of your Flex projects.

Set Flex Builder workbench preferences

1. Select Window > Preferences.
2. Select any of the categories of workbench preferences and modify them as needed.
3. Click OK.