Mark the core of the formation at the spot on the map, and cover it with a common object. Soon enough, the cam…
Mark the core of the formation at the spot on the map, and cover it with a common object. Soon enough, the camouflaging items will gather around, creating a hidden, untouched corner.
The time it takes for the formation to take effect depends on the terrain and area size. It requires careful calculation and patience.
Once the formation is active, someone needs to check and reinforce the core regularly. That's the only way to keep it stable for the long run.