Anchor game object at world location unity arkit

Hi
Does anyone know how to anchor a game object in world location using vector3 in unity +ARKIT in a way that it is fixed to that location and if I move around it it does not move and i can look at at from any angle ?

Go into unity sample project(ARKIT).

Hi, that is screen touch base sample(hit test) I am looking for anone hit test one

ok