I have a Lawn Genie Model Number R416LG lawn irrigation system and have 5 sections in my lawn. It is currently programmed to run sections 1 through 5 one at a time but I want to do multiple sections at the same time and have been unable to figure out how to do it. I have enough water pressure from my irrigation well to do this but I do not have the manual for this model number as I purchased the house long after the system was installed. Does anyone know how to do this?