What is the best way to change objects in the background of the stage in real time? I have some onMove() events that I would like to trigger a change in the stage (like colors/materials/lights).

I see that UFE makes a clone of the stage prefab when the game is started.
I have attached a script to the stage prefab, and I would like to access the functions from this script, from the BattleGUI script.

I do not know how to reference the script attached to the instantiated stage once the game starts.