Display the product option and product load attributes of an object

I would like to be able to retrieve the product option load ID and product option ID attributes of an object.

I can use the Change Object Description (QLICOBJD) API to change these object attributes:

Key Type Field
12 CHAR(4) Product option load ID
13 CHAR(4) Product option ID

But so far I've not found an API which will allow me to retrieve these attributes for an object. I can't see this information in any format returned by Retrieve Object Description (QUSROBJD) API or List Objects (QUSLOBJ) API.

The Retrieve Product Information (QSZRTVPR) API will tell me what objects belong to which product options and loads, but that doesn't seem to give me exactly what I need. I think it tells me which objects the product load *PRDLOD object should be associated with the product load, which is not quite the same thing.

Any MI-savvy people out there know if there might be an MI instruction that would give me these?

Thanks

Pete