Thank you Matthew, for the very quick reply.
I stumbled upon another VAT question, and perhaps this is also something not supported, or if you could point me to a solution? It’s about a purchase of a service from a non-EU country from a supplier not registered for VAT in Europe - so, it’s not a goods purchase with import VAT paid upon the physical import and then reclaimed by C79, which is addressed by this post C79: Import VAT / Import Duty / Handling Fees. It’s also not out of scope of VAT. This should go to boxes 6 and 7 (the invoiced amount), but also to boxes 1 and 4 as import VAT needs to be self-charged (and claimed back at the same time).