I can't find any KB articles on how to add products to tickets. Is this a recently added feature that doesn't work as planned, or am I missing something?

We want to assign certain products (usually a single one) to a ticket from the Products module. The Products module doesn't even show up on the header menu. It's only accessible from the Setup menu.

The ticket pages don't have a Products section in them. The lookup fields in the layouts also don't include the Products module.

How does this feature work? Don't send me the link to this KB article : https://help.zoho.com/portal/en/kb/desk/organization-settings/articles/adding-and-associating-products-with-ticket

This article doesn't explain how you can add a product to an already existing ticket or to a new one.