Does anyone know how to use the Ubercart UC VAT module? I have to implement different VAT for different products (regardless of the category). Some products can have 19%, some 4%, some 6%, and some they don't have a VAT rate at all.

So far I couldn't even specify a global 19% vat.

I don't understand how this is handled. I've searched for documentation but it's almost nonexistent.
VAT module adds 'VAT settings' tab to your Store administration > Configuration > Tax Rates and Settings (/admin/store/settings/taxes), where you can specify global VAT value.