All Xbox One Controllers Now Have Button Re-Mapping Available
One of the big highlighted features of Xbox One's Newest Elite Controller was the fact that the buttons could be remapped to basically any new combination that you wanted.
This functionality now works for standard official wireless controllers, as well as third party wired controllers.
Syncing customised layouts to the cloud and creating controller presets are still exclusive to the Elite controller, and none of this functionality works at all on PC yet. You can change your layouts by going to Settings, Ease of Use then Button Mapping.
This is still nice for people that cant stand clicking in the sticks for melee attacks or want to customize their options to suit their own playstyle!
PC support should be coming at a later date.