Hello ALex,

the STEP-Spec seems to have a mechanism for that (representation_relationship_with_transformation/Mapped_item and representation_map), but I think that Moi doesn't support it, because it doesn't support instances. It's a while ago that I used SW, so the other question is: Is there a Support of the feature in SW? Easy to check in SW - Export and reimport in SW an assembly to see what happens (check basepoints of the parts and multiple instances).

Sorry, maybe someone else knows a solution by Makros or scripts.

FYI:
http://www.wikistep.org/index.php/Representation_schema

Nevertheless, have a nice day
Karsten