Quote - ... if you have two copies of V3, and one of them has 10 different shaders on her, this is not a way to copy all the shaders from your first V3 to your second V3. You will have to do that one material at a time.

Rather than copy one material at a time between two identical figures, I think it would be easier to select the source figure and save the materials to the Materials library as a group rather than saving the currently chosen material as a single material.  Then just apply that material group to the target figure from the library.  All the shaders should move from V3 #1 to V3 #2 without having to copy and paste individual materials to individual material groups (e.g., lips).