How to get radiator drag when it is defined as d and f medium?

I am performing a 3D full car simulation of our FS car. The setup is as prescribed. The radiators are defined as d and f porous mediums. When i try to select the radiator for force and moments it gives me error during run. How do i get the porous force ???

At the moment porous media will generate pressure drops through them, but not porous forces, so this workflow will not work. Furthermore result controls cannot be assigned to momentum sources/porous media/rotating zones.

If you’re looking for forces on surfaces, at the moment you’d have to capture the faces on a CAD level and use a forces and moments result control.