Captain Sim C-130

I downloaded and installed the fire bomber livery from Simviation. Has anyone been able to add the retardant drop effect to it? It has a switch to dump the tanks but I cant figure out how to add the effect.
Flight Simulator and other chat
https://forums.simviation.com/phpBB3/
https://forums.simviation.com/phpBB3/viewtopic.php?f=32&t=94254