This option allows you to change the folder that Screenwriter uses as the default for opening/saving documents (default folder is \My Documents\Screenwriter Documents\).
When you click on the Set... button, you'll get a standard OS X navigation dialog.
•Change the default folder to a different pre-existing directory by clicking on items in the directory tree.
•Create a new folder by pressing the New Folder button.
•Click on Choose to set your default folder, Cancel to keep the existing default.