Tap "Viewfinder". In the "Viewfinder", you can see the live broadcasted image from the device, change your device's image settings, turn on video recording and take photos.
Tap Settings icon in the top right corner to change other settings of your optical device, it will open Settings tab.
To track moving objects in the field of view of the device, briefly press the switch next to the “Motion detection” item to the position . Moving objects will be indicated by a blue frame.
Below you can adjust feature settings: