i am looking to make a coordinated flight between say 3 airplanes.
my aim is to make them fly in say a pattern over a parade.

and similarly land in sequence with out collision . and carry out tasks as a collective group

i am unsure about what hardware and more importantly what software i need to make this possible.
hardware i suppose gps, barometer which most good f.c have  and maybe i/r sensors will be needed to make it possible.
but is there any software that allows for coordinated flight! i know inav doesnt allow that.
MOREOVER i need to able to control all 3-5 airplanes using just one controller... a laptop say. so software is very imp!

just give me a little direction.
right now google isnt returning proper answers , all i am coming across for this is light shows using drones etc.