Eneroth Layer Usage Inspector
List all components that uses a specific layer. Useful to determine if a layer can be safely deleted.
Eneroth Layer Usage Inspector

List all components that uses a specific layer. Useful to determine if a layer can be safely deleted.

A little too often components from the 3D Warehouse contains numerous layers that are totally irrelevant for the project and just ends up as spam in the Layer panel. If you are unsure wether a layer is such a layer or actually has  some sort of purpose in your own model you can use this plugin to find out.

Activated from Extension>Eneroth Layer Usage Inspector....