Particle Effect

[jly625]

Because I need to make a effect which is talking a lot of difference 4 kind of obj and they are place in a ground in random position. After that they need to goto 4 fix area kind by kind.
I would like to use Houdini to make this effect.

Can I make a 4 metalballs + force in SOP and 1 force only attract 1 kind of particle?

Thanks