Live preview/Debug not working with Unity to Oculus Quest 2

Hi,

I am a beginner in oculus and unity development.

I am trying to live preview the project and want to see the visuals I see in oculus in the game window of unity also.

But I am not able to, every time I have to build to the oculus and test or debug(which is very hard for minor calibrations stuffs). 

When I see the basic tutorials on how to set up, they just add the SDK and put the cameraRig prefab to the project and that's it. Then when they click the play button in unity, they are able to view the visuals in the game window of unity and oculus also. 
When I try to press the play button, in oculus nothing happens, and in unity, the view stays where the camera rig is placed(no movement, no nothing).

Please can anyone help me with this? Is there anything that I need to enable in order to use this feature?

Thank You.