What this argument does is it creates a copy loop through each piece of the pre-fracture geometries. When this argument is keyed in, there will be only a piece of the entire pre-fractured geometry in the viewport. If there is a need for visualisation, a copy sop could be used. Increasing the number of copies will copy back each geometry piece. A transform node is then used to bring the piece to the origin.
A popnetwork is also created just after the node that deletes everything except the points.
Inside the popnet,
As no emission of particles are needed, we just set the Impulse Birth Rate option to $NPT
$NPT = all point numbers.
A animated bounding sphere is used to group the particles.
And a force is used to blow the particles apart and another force to act as the gravity pushing the particles downwards.
Below is the render:
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