I would like to create a store in which for every product there is also a corresponding "user manual".

Thanks to ZenCart's "Document-General" product type, it is easy to create such user manuals.

However, since I am total control freak, I would like the product ID match the manual document ID.

I would like to create a separate category, restricted to "Document-General" product type only, in which the manual ID (you know, the left most column in the Categories/Products table) is the product ID + 10000.

Is this possible?

Currently the product IDs and the document IDs are generated automatically by ZenCart, so the ID is really a result of the creation order.

Is there a way to control that somehow?

Thanks!!