***The Create Multiple New Ads Sets feature won’t be available soon (later 2019). Instead, learn how to use the Split Test option at the campaign level. Learn how to create a Split Test in Lecture #16: The Ultimate Guide to Creating Facebook Ads by Coursenvy ***NOTE*** With this old split test technique, there is AUDIENCE OVERLAP when creating your split tests.

https://www.udemy.com/course/facebook-ads-facebook-marketing-mastery-guide/