To set up a specific author, click on:

Edit query > Global Filters > Authors (click on a drop-down list) > Track specific author (insert the name of the author you wish to track)

To block a certain author:
Edit query > Global Filters > Authors (click on a drop-down list) > Exclude...
(insert the name of the author you wish to block)

Note:
If you choose to edit the query, we would advise making sure you extracted your data in a form of a document or report prior to making a change because by editing the query you're restarting the search.

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