Open an options file for editing. Must be run interactively. The editor is resolved from: (1) cli.editor option, (2) VISUAL/EDITOR env vars, or (3) system default file handler.
options.open(options_file_name = NULL, options_dir = NULL)NULL Opens the file for editing
[character, optional] Name of the user options file to modify, including the suffix.
[character, optional] Full path to the folder that contains user options files. If not provided, the default folder is chosen. Defaults to NULL.