I also have an FPS template where you can move the “joystick” to move around and some title screen templates, maybe I could clean them up and release them.
Well about compiling the plugin,
Bad news: Impossible to update directly, because the branch also has a lot of other modifications to other files to make it work. There’s no way other than to manually update a 4.14 branch and use it instead.
Even more bad news: Even the plugin without modifications straight from the engine won’t build an app 
same errors from last time