Slot Raycast Transfer Portal component as seen in the Scene Inspector
The SlotRaycastTransferPortal acts very similarly to the Component:MeshUVRaycastPortal except that it works on colliders hitting a slot hiearchy to another slot rather than just a mesh and a camera.
The slot to send the raycast through if it hits this slot's hierarchy, converting the hit point / direction in this component slot's local space to the space of the slot specified here.