If you want to attach the dog to something where he has to wait, or if you want to quickly get to the car, you can also attach the leash directly to the stainless steel slider at the back. This is a little bigger than the slider on the front strap, as the snap hook for pulling the leash through is hooked into one side. Use the free side for briefly attaching the dog.
However, if you lead the dog over a longer distance using the stainless steel handle at the back, you will be confronted with the same problem as with chest harnesses: Leading from behind provokes the dog to pull forward/focus on the stimulus in the front visual/smell area.