issue in Projectile blueprints;;;

Dear,xXRoyitoProXx, MindfieldsTech
sorry if i couldn’t explain right , so let me clear
check the attached image, I purchase this template from marketplace…
I want this particle to be thrown from my character’s hand when I left click mouse button.

but in this template, there are lots of particle effects blueprints & all connected with one blueprint, I don’t want all this effects, I want only one effect separately. I try to change the blueprint but particles stop working…

basically I want particles to be thrown from my hand & wherever it goes in the level, when it hit something, enemy or wall or any other object, I want small explosion over there & enemey fall down…

hope you understand my point now…
thank you