Edge touch adds an action bar to your screen, which you can use to access shortcuts and to move between screens.
To remove or restore the action bar:
Go to Settings > Display > Advanced.
Or, open the Moto app and touch 
Adjust settings for the action bar:


You can customize what happens when you touch the action bar twice, quickly.
Go to Settings > Display > Advanced.
Or, open the Moto app and touch 
Touch Double tap action and select the action you want:
You can customize the shortcuts that appear when you swipe in from the action bar.
Go to Settings > Display > Advanced.
Or, open the Moto app and touch 
Adjust the shortcuts: