Mesh destruction

Hi!
I have a 3d wall created with multiple bricks (in Blender). Is there any way, to tell unity (before or after importing .blend file) that this mesh is not one single model, but many models? I’m trying to create semi-realistic wall destruction, but when I apply rigedbody on this mesh, after collision whole mesh moves (not bricks that actually got hit). I know that I can build this wall inside Unity with single bricks, but I’m looking for easier and faster solution.

Thanks for any replay
nataku

Is this one single mesh in Blender, or separate meshes? When you have separate brick meshes you should be able to add a rigidbody and collider to each of them…but I doubt that would be faster than creating the wall in unity using brick prefabs…