Multiple mpn codes

Needed for all Automotive related products and spare parts :
A "main" mpn code with the possibility to add more than one "secondary" or old/superseeded code ...

just like the additional images :

one product, multiple images ..
one product, multiple manufacturer codes ..

Really need this feature ....

And maby a dedicated table, just like the additional images, to ease the import from existing databases.

Thanks .. a lot !