You can launch them all at once on a sort of dispenser system. Then after they are separated they are on the exact same orbit. By increasing or decreasing that

You can launch them all at once on a sort of dispenser system. Then after they are separated they are on the exact same orbit. By increasing or decreasing that orbit height by just a tiny bit they will speed up or down and start to disperse. Over multiple days/weeks they will start to disperse across that orbit. Once they are all spaced to the position where they want them they move up/down again to the exact orbit to maintain position. Maybe later in the year I'll make an animation about it, because initially it is a bit counter intuitive but once you get it it makes a lot of sense :)