Calculated projections of the energy-release region (taken at the top of the separator) along the magnetic field lines onto the horizontal plane (located at the height h = 0.3 above the plane of magnetic sources) at various positions of the fourth source x₄. The red, magenta, green, blue, and cyan points correspond to the various radii of the energy-release region R = 0.05, 0.10, 0.15, 0.25, and 0.35, respectively. Positions of the magnetic field sources are denoted by the asterisks, and vertical projections of the energy-release regions are shown by the small circles.