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Since you are using the shortcodes, please see the Site Reviews > Help & Support page which has the complete documentation for all of the shortcode options.
For example, to display 12 reviews you would do this:
[site_reviews theme="6594" display="12"]
For any questions that are specific to the premium addons, please submit a support request here: https://niftyplugins.com/account/support/ as I am unable to bring support for premium addons here in the WordPress forums.