This update adds a scene called "Timeline switching animations." This scene includes an animation pattern called "switching animations animationPattern" that includes simple triggers to keep loading two different subscenes with Timeline animations. The switching keeps occurring every 10 to 15 seconds. I also included a random collider box in the scene to show that the person is not sliding between two locations of the animations, the person atom is spawning in the new locations.
I found it problematic to use Timeline to switch between the subscenes. Timeline logically restarts animations when a subscene is loaded, so I have not found a way to safely leverage Timeline itself to switch between subscenes.
Please inspect this scene as one method to load between multiple animations built in Timeline.