swh
here is a link from CASA licensing section. It is for overseas aircraft endorsements.
http://www.casa.gov.au/wcmswr/_asset...ndorsement.pdf
If you look under the section for Group/Class Endorsements you can see an applicant needs to have command time or have completed a proficiency check.
Otherwise a Co-pilot (P2) endorsement is provided.
I was told by a friend who recently tried having his P2X rating transferred to his license that CASA will no longer allow this, although CASA's website does not specify any info on a rule change (that I can find).