Plug-in
the plug in can link blender objects with unreal actors at run time, saves and loads entire scenes and even control custom properties directly.
Try it outuses non-blocking TCP connection, thus it has its own packet structure. on large scale imports, the system will spreads the updates along a the ticks so the editor can still work smoothly without FPS drops.
one important feature is its ability to update the levels without the need for user input. i developed the system to work based on commands, i.e. move actor to, delete actor ..., it can be easily extended with minimal changes.