Return of particles to their original position using ofxGpuParticles

Hi all, i’m new with OF
trying to do a particle system based on great ofxGpuParticles addon (thx neilmendoza), where after crumbling, the particles stops and return to their starting positions.
Now i have something like this ofxGpuPariclesExample
I’m glad to hear any ideas on how to do this!