Basic static batching question

Hi guys,

unfortunately I find the static batching documentation very... sparse,
so I went here in hope to find an answer.


My problem is: How to control which static objects' meshes are merged together?

I have a game with an isometric view and I mark two houses in my town as static (including their children).
One is in my town's center and the other one at the edge of the town - you'll never see them together.
But Unity merges their meshes together, so if I see one, both are drawn (?).

How can I control this and say: Merge this group A consisting of gameobjects 1,2,3
and merge this group B consisting of gameobjects 4,5,6 and please don't mix them?


edit: Okay, after some browsing I found an interesting posting by bgolus here, where he explains that in fact every mesh renderer of a static object just draws defined triangle index ranges within the big merged mesh.
Still puzzled how to control things a bit better - in my case I do some DrawMesh() calls for post processing but I don't want to draw the entire merged mesh of course.