Google may be testing the option to customize Android's navigation bar to add a little more than what's currently available.

How to set up an Action Button on Android with a mapping app Most features with customizable buttons on Android phones are part of the touchscreen. That's nice, but not exactly an Action Button.

Google is preparing some new features for Android’s desktop windowing mode, including a button to minimize apps.

Use QuickClick to add extra 'buttons' to your Android device The app tweaks your volume buttons for things like turning on the flashlight, sending messages, and running apps.

That is the 1Tap Quick Bar app displaying no icon, and allowing the app to display information in the shade itself. One of the most useful shortcuts this app lets you to add is the redial button.

Android’s notification bar puts all sorts of info at your fingertips — and with one simple tweak, you can make it do even more.