HTC Vive - Unity3D - Tracking Points / Checklist

I know how to setup HTC Vive VR and have the VIVEGRIP ASSET from the asset store so everything works fine in an environment. What I need done in Unity3d is : - User looks at an object with a script on it ( example : hazard ) - User pushes down on left vive touchpad and a canvas menu pops up - The wrist menu says " TAKE PHOTO OF HAZARD " with a camera symbol - Tap the camera symbol and it will count 5 seconds and save a screenshot of the hazard into a screenshots folder. - If the photo is taken of the example : hazard object, a checkmark 3d symbol will appear on the hazard object at a location I choose - When touching a specific object ( a door ) the application will then mark all hazards with a red X that were not photographed.