Where is displacement baking gone?

In 2.8 bake from multires doesnt work. In blender 2.79, Displacement has been removed from the menu. How do I get displacement baking to work

Hi. Displacement baking is there in 2.79. In Blender Render as usual.

In 2.8 I suppose that it will be implemented in some way later.

never tried this, but… - “You can bake it in cycles. You will need to use a vertical gradient connected to an emission shader. In the Bake settings change to Emit”

I know it’s been a month, but what do you map it with? It’s fine for displacing a flat surface, but what about a character?