Figured I would chime in with a +1 for Epic to implement plugin support for modifying the rendering engine. I have serious doubts about my skills as a github user and getting everything to play nicely. would also be a huge benefit for the ArcViz crowd that may or may not be programmers. Going from AutoCAD / Inventor to UE4, and then needing to learn about github branch management and compiling? No thanks!
Please Epic!