It is not a nuke inbuild tool but a plugin try to find some infos from the author of the plugin or where you downloaded it.
When i need particules i use a 3D software like maya, but if you are confortable with AE you will save you troubles trying to work with a plugin that may not have everything you need and obviouslely not documented.
nothing goes against doing different things of a shot in different sofwares
cheers