[Austin808]

This would be great, but I have not found a way to control the camera. If so I could then map the button using Keyboard config.

Edit: I think I might have found a way to use Mortscript and Keyboard control to do this.

Update:
I was able to assign the long press for the volume up just for the camera app to send the enter key.

Now you can take the picture by holding down the volume up key.