Material List with Previews / Icons

For quick drag and drop material distribution and overview. Please give Thumbnails view to the Outliner in "Blender FIle" mode or make a dedicated Materials(library) view with possibilities like rich filtering options like only materials of selected objects, copying materials into material libraries back and forth, material groups and view used textures per material. My background is many years or professional 3Dmax usage and this is a much needed feature for bigger scenes.