Some elements will not delete...?

[xan-unreal]

Some elements in the scene will not delete.
anyone want to help?

Thanks

[richard-sher]

Some things are made "undeletable" so that you don't accidentaly screw things up. For example: In a new scene, select the "Camera Root" and try to delete it. You can't. That is because you have to have at least one camera in the scene.