The Load » Miscellaneous branch of Settings includes the following options.
This setting forces the editor to change the read-only status of the file ond disk when the Read only command is toggled. The default setting (unchecked) allows you to force the editor to treat the file as read-only, thus preventing unwanted modification of the file, without changing the actual file status on disk.
This setting forces the editor to set a lock on any file that is opened. Additionally, if the file is already locked, it will open the file as read-only with a prompt to confirm on open. This setting prevents modification of a file from outside of the editor, which can prevent a loss of unsaved changes within the editor.
If this option is set, all open files will be closed without a warning prompt when you open, close, or switch to a different project. If not selected, you'll be prompted as to whether or not the open files should be closed.
This setting forces the editor to create a new file if the file specified to be opened on the command line doesn't exist. The default setting is to create the new file.
This setting instructs the editor to create a new empty file ("Edit1") file on startup if no other files are reloaded.