Wings 3D/User Manual/Outliner
6.1 OUTLINER The Outliner gives a list of all objects, images, lights and materials used in the workspace. You can quickly edit, with a right click, all of the items in this list.
Quick Tip: Drag and Drop
Currently, you can drag a material into the Geometry window and you can drag an image into the AutoUV window. There will be more in a future release.
Tip by Bjorn Gustavsson