Scene > Material Editor
Use the Material Editor to create, modify, filter and search, and group materials within VRED. Use the drag and drop operations and preview feature on material assignment to saves time on scene setup. For information on specific materials and their attributes, see the Truelight Materials Reference section.

Click the links below for more information:
Advanced Search, Search, and Filter
There are several hotkeys available for the Material Editor:
Ctrl + A Select All MaterialsCtrl + C Copy MaterialCtrl + D Duplicate MaterialCtrl + G Create GroupCtrl + M Apply to Selected NodesCtrl + N Select NodesCtrl + R Rename Material or TagCtrl + Shift + A Deselect All MaterialsCtrl + Shift + F Scroll to SelectionCtrl + Shift + G Group SelectionCtrl + Shift + N Add Nodes to SelectionCtrl + Shift + V Paste Clone Material ChunkCtrl + U Remove Unused MaterialsCtrl + V Paste MaterialDel Delete Material or TagEsc Deactivate Texture ManipulatorF5 Update Material ListT Toggle Texturing Mode