is It possible to add a button let's say "MEASURE" and that will calculate the distance between to points in real time objects ? aka add a button to ARKIT measure ? when i try to add a new file to my xcode project there is no augmented reality option so far.
ARSCNView is an great way to get up and running quickly with ARKit. There is no ARKit api that will calculate the distance between two points for you, but you can certainly use the positions of objects in AR to calculate this distance. This page would be a good place to start when you are trying to build your first AR experience.