You can display the front end form for adding/submitting listings. Users will be able to submit new listings using this form. To display the add listing form on any page or post:
Use this shortcode: [directorist_add_listing]
This [directorist_add_listing] shortcode does not accept any parameters/attributes.
The shortcode output on your site may be a little different because new features are being added and modified with every update.