One of our zones - our lawn - now has high end artificial turf. As a result, I don't need it watered constantly. I only want to use the lawn sprinklers once in a while to keep it all clean. So I'd like to exclude that zone from a regular watering schedule, and only trigger it manually. Is this possible with the Rachio controller? I'm just about to purchase the gen2 controller, but this is the one thing holding off the purchase.