clustersss

Hi!
Im working with a definition I found in this forum, I cant find it anymore, dont know who made it...

The fact is that I need to create 4-5 clusters, randomly, but I prefer if they remain separated in the map...just like the definition "cluster" I found...
but with the mesh I created on "cluster2" and I tried to mix with cluster...it doesnt work, maybe because the script...but I have no idea scripting...so...any help...?pls?