This documentation is based on the PRO version so additional features are PRO features.
The 2nd tab for filtering is for query build you can filter the items
2.1) Include only: You can set the specific ID by a comma.
2.2) Exclude: You can set the specific ID by a comma.
2.3) Limit: Set how many want to display.
2.4) Categories [PRO]: Select the category or categories that the testimonial data you want to display.
2.5) Tags [PRO]: Select tag or tags that testimonial data you want to
2.6) Taxonomy relation: [PRO] Select relation between the category and tags.
2.7) Order By: You can select the order by option id, title, data, Random [Pro]
2.8) Order: Set Order Ascending or Descending
