I know documentation is being worked on but there has been very small improvement since 4.0.2. I know it is a lot of work and it could take months to finish it but the C++ source is the most powerful feature in UE4.
It deserves the most attention right now in my opinion. If Epic puts more effort into it (more people, more time) it will be finished very soon and I’m sure of that.
Once the documentation is clear everybody can start to get their hands to make games instead of experimenting with basic things and not really going anywhere.
It will be very beneficial to both sides: people don’t get frustrated and save time, Epic gets money faster due to people making game faster.
I know these are obvious reasons but I don’t think it is being taken seriously (enough).
So again, please, focus on providing us the knowledge so we could be successful with you.
Anyway, thank you for the wonderful engine.