I require a plugin modification to insert and update a MySQL table from Gravity Forms on Wordpress

Require a programmer who is familiar with Gravity Forms Feeds and MySQL. Require a plugin modification or new plugin written to be able to insert or replace rows in a mysql database table after completing a gravity forms entry.
The current plugin only inserts new rows but does not replace or update rows. Current plugin on codecanyon https://codecanyon.net/item/gravity-forms-wpdb-mysql-connect/5968479 which I have bought.