duplicating and bulk editing products

So, we're trying to use WHMCS as a gateway for a video on-demand service, which means we need to have a few thousand products that are nearly identical except for their name and product id#. Unfortunately, there doesn't seem to be any simply way of duplicating products or bulk editing them.

Is there a way to do this that I've missed? Is there an add-on or plug-in we can use?

for bulk editing prices, there's the Bulk Pricing Addon or the free third-party addon, Easy WHMCS.

for bulk duplicating products, i'm not aware of an addon that can do that - though there may be one in Marketplace.