I would like that the VAT group is selected automatically based on the (invoice or delivery) address of the customer/prospect etc.

There is some functionality available on the VAT group form when we key in an address with country, the VAT group is automatically selected when you use the country code (based on the country in the "call center default values"). But we can only select one country in that form.

In the "retail destination based tax" we can select multiple country's for a specific VAT group. But the system does use this functionality/country's.

I would like a parameter in the standard sales system that can set the default taxgroup on a relation based on the countries in the "retail destination based tax".

For in our case we have "local" VAT, "European" VAT outside "EU" vat. And there is more than one country in the EU.