You set the default font encoding for your project on the first screen of the New Project wizard. After the project is created, you can change font encoding mappings from the Properties dialog box.
Here's how to change font encoding mappings:
Note: To delete a font mapping, click the Delete button. Fonts 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.