For the actual discussion, I feel pretty strongly for kinds of tools. IMO basic modeling tools should exist inside the editor or there should be some way to make a nice interface so that we could use 3rd party tools for . Atm the barrier for any third party to extend current editor is pretty big and probably the reason why we’ve seen so few attempts for kind of thing so far.
What baffles me that there are always people around who will say “but my x tool does all and 10x faster” when someone mentions these kinds of tools would be needed. While I agree that dedicated tools can do mesh editing itself better (I really don’t expect any built-in game engine to beat the industry pro’s on their own field), it doesn’t mean that you’d still get same rapid prototyping time that you could get when you didn’t have to jump between the tools. I for one, would love some basic modeling toolset inside ue4 and also would love even some really bare bones sculpting tools (!) there. Just have tools that make it fast to iterate over the level geometry and change small things on the fly. With VR editor could be even many times more interactive process, as you could pretty much block out the world while being in the game world