Single layer of interacting spheres

[carrrottt09]

I think I must be missing something obvious.
I know how to do this in PFlow, but can not get it to work in TyFlow. 
I'm trying to distribute spheres across a surface and have those spheres interact with one another so there is some subtle motion.
Thanks

[carrrottt09]

I think I must be missing something obvious.
I know how to do this in PFlow, but can not get it to work in TyFlow. 
I'm trying to distribute spheres across a surface and have those spheres interact with one another so there is some subtle motion.
Thanks

 Edit: I was able to get something somewhat like what I am looking for with the attached screen-grab.