Manual Shutter / Volume Button Capture

Would it be possible to add a manual shutter option, allowing the operator to take a photo immediately without a countdown timer?

Ideally, the photo could be triggered either by:

• Tapping a manual shutter button on the screen, or

• Pressing the Volume Up/Down button on the iPad as a physical shutter button.

This would be very useful for photobooth setups where the operator needs precise control over the moment the photo is taken.

PS. Roaming mode is cannot select layout before taking a photo and preview camera is fliped