Yes, but that won't be enough. All aircraft have to take off together, and that needs an runway for each aircraft. It means you have to create separate Afcads.
As I said above, even you will use the same duplicated aircraft, runway and flightplan you won't get the guarantee that all will start exactly at the same time and remain in formation during the whole flight. This example shows that some aircraft start faster than others and that kills the formation.