Shutter button full screen/trigger by volume up/verbal shortcut Siri “capture one shutter”

In order to allow Capture One to take selfies on the iPhone without looking at the iPhone expand the interface to have a Selfie Mode. In this mode the only option is to press the shutter button, nothing else. Three options would be useful so that the selfie taker can hide the phone and without seeing it, press the shutter button, and not by mistake, change any other setting by fumbling another option visible on the screen. Press the screen with a finger. Now let’s add the complexity of a glove. Now we wish to press the volume up button so that the glove will work. Now are hands are in the picture. So we add a voice shortcut to allow our voice to press the shutter button.