MultiVendorX's Vendors Marketplace shortcodes are listed in the Shortcode section. Depending on the template you're editing, this section will display only the shortcodes that are available and compatible with that specific template.
MultiVendorX has provided some elements for order here.
The availability of elements depends on the specific template you're editing. Elements that are compatible with the selected template will be enabled, while those that are not applicable will be disabled automatically.
And don't forget to enable and save those templates.
