This menu manages individual materials, maps, or controllers.
Displays a submenu that lists the other Material/Map Browser groups to which you can copy this material, map, or controller.
You can copy a base material, map, or controller to the Temporary Library or to a custom group. You can copy an edited material or map to the Temporary Library or to a custom library.
The Temporary Library is saved with your 3ds Max scene, but it is not saved elsewhere unless you save it as a MAT file, under a different name.