My android phone will open the camera app if I double press the power button quickly twice. I want to remove this shortcut and also, instead, I want to make it such that, if I long-press the power button, then a file (usually audio or video file, but can be anything) that I chose last time will automatically play. If it's an audio or video file, then it should automatically start playing. Is this possible without making a new file? Is there an app that makes it possible to create this already?