How do you make DF look like that?

Is there a good way to designate all those coffins as individual burial locations? I only know how to designate them one by one, and multi wants to make the whole room a single tomb which isn’t what I want. I want each coffin to be a 1x1 tomb.

I usually build drawbridges separating the surface and the lower biomes for exactly this situation. Is there a chance I’ll have twenty dwarves chewed up and traumatize their families? Yes. But my crossbowmen will kill a thousand hellbeasts and titans before we lose a hundred.

Also keep a bunch of wardogs at the entrances.