I really need some help getting my head around this. I have this idea of making a grid editor by nesting block list editors.

I figured out how to nest one level down, by watching a blog post late last year. But i need to go at least one level deeper. Has anybody got a code snippet or gist to do this, i would be very greatful.

the idea is to have: A blocktype that is a "row". The row can contain x "colums". A column can contain content elements or x "rows". And so forth.

I have illustrated what i'm looking to achieve here. Colours reference the element vs the render:

I think maybe Søren Kottal did something like this in a blog post, but i cant seem to find it..