If I understand you correctly, you’d like one scene to cause actions to happen in other scenes.
It can be a little tough to find, but when you have the trigger and action menu open, in the “Then” side, under Scene Structure, you’ll see the name of the scene that you’re currently in. But if you look to the left of it, there are two little boxes with an arrow. If you click that, you can actually see the scene structure for other scenes in your XP. Go ahead an create actions in those other scenes and see if you can solve your problem. Good luck!