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Table Filter for Confluence add-on is equipped with the dropdown filter. You can add this filter type for any column of your table. It shows the list of unique values stored in the selected column of your table. You can select one or multiple values for data filtration in this dropdown filter.
To make your work with long tables more comfortable, you can specify the number of top rows to show in the Show first N rows field.
You can also filter tables with @-user mentions by the current user (write or select @currentUser).