I recently cloned an existing ENDEVOR type JCL and created a new type PJCL. Except the name of the type and the description I changed nothing in the DEFINE SCL statements.
Now both types seem to share the same "processor group output type", since I didn't changed that literal while defining the new type. This is a pity because it shall be possible, that elements with the same name exist in both types. Of course both types have different source and delta libraries.