Is it possible to create a Multi-row EFF on Supplier profile ?

Summary:

Is it possible to create a Multi-row EFF on Supplier profile ?

Business Classifications on the supplier would have sufficed provided it gave me the capability to Create a Custom Classification + The capability to create sub-classification under it

Content (required):

I am trying to capture NAICS industry Classifications on my supplier profile . Its an important supplier qualification criteria for us . A supplier may have Multiple Large Business or Small Business NAICS code Classifications associated with them , these need to be captured on the supplier and then used on the PO with reference to the supplier

If Business Classifications had this capability , It would have been great, but it does not - There is an idea in the idea lab for allowing custom business classifications with sub-classifications capability