Why you don't make Scene::destroySceneGeometry()?

My problem is i don't know how to destroy a SceneGeometry in NxOgre at runtime.
The NxOgre allow app to destroy SceneGeometry in dynamic?

thanks!

Because PhysX prefers that you don't. It upsets the solver, and makes the simulation unstable.

thank you very much.
But in my app, I need dynamic destroy triangle mesh, What i use to implement this?

You can't. I'm not joking. No serious game engine does that.

If you need to destroy the Triangle Meshes, you need to destroy the Scene.