Windows expert Rafael Rivera has released a tool called Mach2 to find hidden features in Windows 10 builds. Using Mach2, you can manage the Feature Store, a component of Feature Control, to find, disable, and enable features that are normally hidden from non-Microsoft users. These hidden features are not enabled by default and require a special method to activate them. Mach2 can be downloaded from the program’s release page and consult Rivera’s GitHub repository for the latest features found in a newly released Windows 10 Insider build.
Source: https://www.bleepingcomputer.com/news/microsoft/how-to-enable-windows-10s-hidden-features-using-mach2/