From Nevercenter 3D Modeling Wiki
Default Shortcut: Ctrl + N
Menu Path: File > New Scene
The New Scene command will open a new, blank scene. You will be prompted to save changes on your current scene, which will be closed when the new scene opens.
- The default material will be carried over from the previous file, but all other materials will be lost.
- Starting a new scene is akin to closing Silo and opening it again.