Paste Xref into new dwg and maintain layer status possible?

Looking some something that will allow me to copy an xref from one drawing and paste it into another drawing while keeping the layer status from the drawing that it was copied from. When I copy and paste the an Xref into a new drawing; it converts back to the layer state that exist in the actual xref drawing itself. It would be nice if we could copy select layers from the layer dialog box and paste them back into another drawing and have them overwrite if the layer already exist. I have used layer states but it gets a little time consuming when working with drawings with over 400 layers.

I have used layer states but they are a little time consuming for me. Maybe someone knows a trick to accomplish what I am looking for.