Material Editor > Put Material to Scene
Material Editor menu > Material menu > Put to Scene
Put Material To Scene updates a material in the scene after you edit the material. Put Material To Scene is available only when:
In other words, this command is intended to fit into the overall sequence of handling materials:
If you apply a mapped material to a parametric object whose Generate Mapping Coords option is off, the software automatically turns on mapping coordinates at render time. In addition, if you apply a mapped material with Show Map in Viewport active to an object, that object's Generate Mapping Coords option is turned on if necessary.
The Show Map In Viewport flag is now saved with individual materials, so you can drag mapped materials from the modeless Browser onto objects in your scene, and the mapping appears in the viewports.
To put a material back into a scene:
On the Material Editor toolbar, click Put Material To Scene.
The material in the active sample slot is now a hot material.