DefaultLitSpriteMeterial

Hello
Im working on a sprite with the DefaultLitSpriteMeterial.
So im applying a normal map to the sprite, but the DLSM (DefaultLitSpriteMeterial) only seem to be able to apply the normal map, where ide like to apply an AO, Specular, posibally another map, but…the DLSM only seems to take one of the maps at a time.
Does anybody have experience with this meterial and posibly has found a way to force it to use more then one map?