How to 'tell' a KinematicBody2D(Platform) that another KinematicBody2D(Player) is 'on' it in a Top Down view?

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:bust_in_silhouette: Asked By PragmaticSystematic

This seems to work automatically when in a side view (Like in the Kinematic Character example). All what is needed is a collider and the top body will move with the lower body.

But how can one do this from a top down view? A collider will prevent the top body entering the lower body.

For example, here, how could I move the Dinosaur and the Platform together?
Or ‘tell’ Godot the Dinosaur is ‘on’ the platform?