Attach an invisible Pawn to the camera

Hi I’m trying to follow this documentation which talks about attaching a pawn to the camera in an actor BP.

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Can anyone explains what he means by this? There is nothing online anywhere about adding a pawn to a camera.

You can add an AIStorageComponent as the child of your VR camera, but that is for VR.
Can you explain what you want to do and where you found that ? There are many ways to do that. Also post the link to your sources so we can take a look at the whole article.