You can change character style mappings during the project creation process through the New Project wizard (see Creating a new project). After the project is created, you can change character mappings from the Properties dialog box.
Here's how to change character mappings:
Note: To delete a character mapping, click the Delete button. Characters formatted with the deleted style revert to Default. You must do this at the project level. If you try to delete a mapping in an individual file, the Delete button is grayed out, indicating that you can't delete mappings.