How do I link S Voice to the home button?

[AC Question]

I went from an S5 to the S7.
When I double-tapped the home button on the S5, it would open up S Voice. The S7 only has the option to link the home button to the camera, as far as I can tell.

 

[jasonandrews25788]

settings, applications, default applications, device assistance app, device assistance app, select svoice