Can I create a regular text document like a manuscript, treatment, or letter?

Though primarily designed for writing screenplays, Final Draft can be also used for writing regular word-processing documents — treatments, letters, resumés, etc.

1. Choose File > New from Template and the New Document dialogue appears;
2. Click the Text Documents icon to display the list of available text documents;
3. They are:
   1. Manuscript
   2. Query Letter
   3. Text Document — blank
   4. Text Outline
   5. Treatment
4. Select a text document to use as a template;
5. Click OK.

The Manuscript and Treatment templates have sample content and are actually script documents that use screenplay macros and commands.  The Toolbar is the same as for when a script is open and the Tab and Return keys operate as they do when a script is being written. It is safe to delete the sample content before writing begins.

The Query Letter and Text Outline templates have sample content and are text documents.  The Tab and Return keys operate as they do in a regular word processor, and most scriptwriting-specific functions are disabled. It is safe to delete the sample content before writing begins.

The Text Document does not have sample content; it opens blank. The Tab and Return keys operate as they do in a regular word processor, and most scriptwriting-specific functions are disabled. 

When a text document is the active document, many commands in the menus are disabled. These functions are screenwriting-specific and are not needed for general word processing.

Any text document may also be saved as a Template (see File > Save as Template).

All Reports are text documents, which can be edited and saved as stand-alone documents.

For further information on saving and customizing templates watch the below video: