Hello kamullis,
Please kindly check the information on below about the layer explorer and the scene explorer.
Scene Explorer: The Scene Explorer provides a modeless dialog for viewing, sorting, filtering, and selecting objects in 3ds Max, as well as additional functionality for renaming, deleting, hiding, and freezing objects, creating and modifying object hierarchies, and editing object properties en masse. click here for more information
Layer Explorer: the Layer Explorer is a Scene Explorer mode that displays layers and their associated objects and properties. You can use it to create, delete, and nest layers, as well as to move objects between layers. You can also view and edit the settings for all layers in the scene, as well as the objects associated with them. You can specify the name, visibility, renderability, color, and objects' and layers' inclusion in the radiosity solution from this dialog. CLick here for more information
Thank you,
Keyner Chavarria
Autodesk Maya Specialist