That would make a single pump be able to control individual corners , like a 2 pump to the rear for a chain bridge,, It works like this ... You have to wire the switch box differant.. when you want to lift the rear cylinders, you have to have a 24 volt signal to the dumps that are hooked up normally closed so they open so the pump will lift, now when you want to lift one cylinder you only need to open one of the normally closed dumps , There the same dumps just look at the way there plumbed, the pressure is running to the normally closed side.. Thats not my diagrams, just a concept that functions.. It works.
