Direct/Indirect setups

You can pile your lump on one side. You can use fire bricks, or the Ang-L brackets from the Ceramic Grill Store to create a solid barrier to hold your lump on one side:

You can corral your lump in the lump reducing ring (or just build a small pile of lump in the center) to have a circular direct zone encircled by an indirect area:

Even when you have a plate setter (or baking stone) for indirect, you can use the unshielded areas for some direct (raised direct) heat.

You can also use a 1/2 round ceramic stone. You can find some at the CGS.

I've used all of the above methods except for the half round stone setup (I don't have the stone).