The Preload Scene behavior will load a scene into memory, but it does not immediately switch to it after loading. You can then use the Load Scene behavior to switch to the scene. Preloading the scene before switching to it can give the effect of an instantaneous scene change.
Note that this is a Developer tier feature.
An event is triggered once the scene is fully loaded.
Select a scene that you want to preload.
This behavior has no outputs.
You can load the next level of your game before the player even finishes the current level. By the time the player reaches the end of the current level, the next level is already loaded so using the Load Scene behavior will change to it instantaneously.
This can also be used to create dynamic loading screens. You can play a loading "animation" while the next scene is loading.