Particles Obj Node select 3dsmax particles object. And can set Particle size for levelset conversion.

Output / Particles:
output particles.

Pick Particles:
Select particle object from 3dsmax.

Particle Size:
Defines particle size. This size use for levelset conversion.

variation [%]:
Defines particle size variation.

Random Seed:
Defines random seed for size variation.

use All PFlow Events:
When checked, use all PFlow event for input.

Pflow Events:
Defines selected Particle Flow event for input.