So I went back to the drawing board. What I really wanted was an old school point and click adventure, and using an RPG backend to create it wasn't really doing what I wanted. I had lots of unnecessary widgets that I kept taking out, and I realised that there are better systems out there for doing what I want, so I used one.
The Point + Click Adventure Toolkit does exactly what I want, but it does have a bit of a learning curve, so it's taken me most of the week to get something I'm happy with sharing, and here it is.
Marketplace link: https://www.unrealengine.com/marketpl...
Icon Creator: https://www.unrealengine.com/marketpl...
And Synty's store: https://www.unrealengine.com/marketpl...