Under the options tab, you can select taxonomies that belong to the listing from Custom Fields (Listing Categories) or create new ones.
Here is the overview of the tab:
The fields in the Options tab will vary based on the Custom Fields you imported/created on your website.
If you want to add new items to the option, you can use the + Add New field at the bottom of dropdowns:
To include more listing options, it is necessary to create new custom fields.