Edit an environment, shader, texture, or light.
You cannot give an environment, shader, texture, or light the same name as any other shader, texture, or light, or object in your scene. This is because the SDL file uses the same naming convention for shaders, textures, lights, and objects. If you attempt to enter a name that is already in use, the system displays a warning that the shader, texture, light, or environment will be renamed. The system then assigns a number after the name to make it unique.
If you want your shaders to have the same names as the objects to which they are assigned, you can assign object names with all lowercase letters and shader names with mixed case letters. This creates enough of a difference that each name is considered unique.
See Active in Render > Multi-lister.