Nested voronoi (4 iterations) help please! :)

Hi all! 

I am having some trouble with voronoi cells inside voronoi cells, inside voronoi cells, inside voronoi cells :)

I am using the voronoi group command to iterate 2 set of voronoi inside one set inside the other sets cells. 

I would like to do 2 more iterations but when I try to reuse the points from the second point set for the voronoi group into a new voronoi group command it gives another result (not so strange since the first one is inside another cell). I imagine IT could work if I could take the new lines that are created and use them as some kind of boundary curve for the next set of iteration, but the standard voronoi only takes a box as boundary and the voronoi group only has a plane option?

So far I have solved it by doing the last two iterations manually, but that is very time consuming. 

So I was wondering if someone could help me figure this out? Here is an image of what it looks like at the moment (done manually). 

My gh definition only exist of two point boxes, a voronoi group and some offsetting so that is not so much to show at the moment :)

Also is there a good way to fillet the cells in grasshopper to get a more soft cell look, I have tried the geometry gym option but that crashes my GH bad :(

Thank you for your help!

With regards

Isak