Restrict view products from supplier portal

Summary:

Is it possible to restrict the list of items that a supplier can search from "View products" functionality on Supplier Portal?

Content (required):

Our customer would like to share with its suppliers item attachments and item structures related to the products they buy from the specific supplier.

The functionality called “View Items on Supplier Portal” (https://docs.oracle.com/en/cloud/saas/supply-chain-and-manufacturing/23b/faupd/view-items-on-supplier-portal.html) allows to do that but, enabling this feature, the supplier can search all the items included in our customer Master Data and not only the one that our customer buys from that specific supplier. Is it possible to restrict the item list in any way?