Composite/Combine skinned meshes

Hi all. I need to make two (or more) skeletal meshes share the same skeleton. The reason is that my character has separate meshes for different parts of his body (for customizability), and I want the two to share the same skeleton and animations (similar to UDK's SkeletalMesh.AnimationParent). I tried setting the root bone property in the skinned mesh renderer's properties, but this affect the root bone ONLY, so the models have no animations whatsoever. Does anyone know how to do this? Thanks in advance.