Hi all
The Pilatus, probably, has a weapons selection function so that individual rockets or multiple rockets may be fired; 1 rocket per trigger pull or several. Each pylon could be selected, depending on what it's carrying.One might even have to "tell" the computer what it's carrying on each pylon, first.The pylons might be plumbed for drop tanks or ferry tanks.The pylons would also have a "Salvo" or jettison function so as to allow the pilot to blow off the ordnance in an emergency.Remember also that the Pilatus will carry any NATO pod or ordnance that is within it's pylon's weight limits The Marchetti would never have flown with a pod mix like that because of the different pod functions and weights.
regards
GttC