This is a list of all the textures applied to the selected object. When you apply a texture to an object, it's placed on top of any other textures that have been applied, and it appears at the top of the list.
You can change the position of a texture in the list by grabbing the name of the texture and dragging it to the desired position in the list.
Each texture is mapped separately. Select the texture for which you want to change the mapping parameters.
If the selected texture is a 3-D (or solid) texture, such as Wood or Stone, several of the fields are dimmed. Because they are three-dimensional in nature, the texture contains no maps, so the Mapping, Tiling, and Mixing fields are dimmed and unavailable.
Solid textures, such as marble, stone, or wood, can be positioned interactively by clicking the Position button, or you can enter numeric values on this tab to position the texture on the object.
Volumetric textures (fog, haze, mist) and effects (lens flare, aura, fountain) also appear in the scrolling list with any other textures that have been applied to the selected object.