Hi Uros,

this can't be done using the plugin as is, also because Paypal supports only a unique shipping cost to be passed to the cart.

So this logic should be developed using Javascript directly in the cart on your site, adding a radio button to choose an option between EU and not EU and change the shipping amount accordingly.... the final shipping amount once calculated can be submitted to Paypal cart.

The 4eur fixed amount however will be added to Paypal cart everytime a user adds a product type to Paypal cart.

Best regards!

John