Please restore the "Ok Google" from any screen options on Galaxy 6, Galaxy 6 Edge!  We plunked down a lot of money to get these phones early to be able to enjoy these features. The options, when they were available, allowed you to toggle "ok google" from any screen function ON or OFF, retrain voice model, etc.

Such customization options are a big part of why we chose our phones. It is an important feature of the OS that we expected to be available. It is infuriating to have set up the voice training and become dependent on being able to use "Ok Google" from any screen for it to suddenly be removed when it is still available of older phones such as Galaxy s5, Note 3, Note 4, etc.  Users have reported being told by Google that the problem lies with the carriers or third party apps.  Many of us have gone through the pain of trouble shooting from safe mode, uninstalling all apps and reinstalling, factory resetting, etc, wasting hours of our time to no avail!  Please bring back the "Ok Google" from any screen options and give us the choice to turn this feature on or off!

https://productforums.google.com/d/topic/websearch/xGiV6D4PMS8/discussion