No, you cannot set, or even know, what Quantity of water is used, because, in both High Efficiency (it measures the load, then fills to minimum necessary water level needed to clean), or in Manual mode (User sets "Small/Medium/Large/Super Capacity" Water Level), what the washer is measuring is the LEVEL of the water in the tub, WITH the laundry in it. So, depending on the bulk of the clothes loaded in the tub, for example, a "Medium" Water Level setting could have different QUANTITIES of water for different bulk loads of clothing.