Button Mapper: Remap your Keys is a tool that would let you assign functions to certain keys on your device. You can think of it as personalizing and delegating tasks to different buttons on your gadgets that would give them flexibility and the ability to multitask. At the same time, users will be able to access their most-used functions quicker because they are literally just a press of a button away. For instance, you can open your device’s flashlight without opening your screen if you just delegate that function to the volume button. A long press should do the trick!