We have actually disabled this because, I can't remember where I review it (I think it was a post by a SERengines programmer), however allowing this may disrupt the Web 2.0 engines supported by SERengines. https://medium.com/@traveltoday0082/unlocking-the-full-potential-of-gsa-search-engine-ranker-for-seo-mastery-69fb8e100768