Trail Count

– Set the number of trail particles (particles following the main particle).

– When Trail Count = 1 only the main particle is rendered.

– When Trail Count is greater than 1, additional options are enabled and trail particles begin to follow the main particle.

[download .blend]

– Note: at this moment, with Blender 2.8 Beta git.80ffa73b3f87 I cannot render the Halo material, so I rendered this video using Blender 2.79b