How do I transfer shapekeys (in blender) from one mesh to the other? the meshes are identical, just some changes were made and I need to transfer over the other shapekeys. 

The best I found via google was to do this process:

- Add at least a “Basis” blend shape to your target mesh.
-Select the source mesh, and select the appropriate Shape Key on this mesh.
 - Pin that shape.
 - Select the target mesh.
 - Shift-select the source mesh.
 - Press TAB to enter edit mode on the source mesh (yes, with both objects select).
 - From the Mesh menu on the header, select Scripts, then “Deformed Mesh to RVK”. Answer “Yes” at the prompts.

The problem is this last part: " From the Mesh menu on the header, select Scripts, then “Deformed Mesh to RVK”. Answer “Yes” at the prompts."

There is no scripts menu, I can't do that unless it got moved somewhere else on modern blender versions? halp