[MDL ED] Making bones static

[salsbury]

Hello again

So on my third level I wanted to construct some bridges that were large sized bones. In the entities tab there's a single human bone, and skull. I imported the bone into the model editor, disabled gravity and applied a body, yet it doesn't work, it still falls into the abyss. Is there a way to turn entities into static objects? I'm sure it's been asked but I'm not finding much.

Thanks