Hi @jwf
The good news is, the reverse charge set up in QuickFile is geared more towards goods than services - so that should make your life a bit easier in that respect.
For reference:
The reverse charge option will add the VAT and remove it, as well as adding a line of text to the invoice, like this:

There’s more about the reverse charge option in QuickFile, here: VAT rates explained
VAT is however a fairly complex area, so if in doubt, I would ask your accountant for advice.