Please could someone advise me on how to set up shipping as follows:

(Store is based in the UK)

Shipping within the UK is free. (regardless of weight, no of items, etc).

Shipping to the EU is 6 GBP.

Sorry - I'm sure it must be simple, but I'm struggling. I've looked at the tutorials etc, but all the options seem much more complicated than this and I'm getting lost.

I also have 2 categories that can only be shipped within the UK. Is it possible to set something up for these?

Thanks so much!