Loading Screen

Hey guys! I have been working with Unreal for a while now and understand most of the blueprints in it. However, I never really knew how to create a loading screen with a progress bar. Sure, making a static loading screen is easy, but when I place in a progress bar, what should I bind it to? Thanks in advance to all answers!

Currently there is no way to use a “real”-Progress bar. You can use Streaming Levels or what i tried, servertravel. While the Levels are streamed or servertravel loading the Level, you can use a dynamic loading Screen with umg. You can fake a Progress bar. But you cant read any values of the engine how much are loaded.