The virtual home button on the S7, S7 Edge will help to turns off the screen without the power button, setting screen lock, screen standby, camera ... to reduce the use of too much physical home button.
@Rodney Olson here I will guide you to actively enable the virtual home button on your S7, S7 Edge in particular and in general for smartphones of Samsung. Just follow these steps:
Step 1: Go to
Settings from the Home screen menu.
Step 2: You choose
Accessibility.
Step 3: Select the
Dexterity and interaction section to activate the Samsung Support menu.
Step 4: Then select
Assistant Menu on the menu.
A button will display on your smartphone screen and you can use it, just touch it and there are many features you can use beside virtual home button like screenshots, Easy pinch zoom, device options, menu settings, volume..etc
Good luck!