Fire one event before all others

When I switch themes, Antetype is going through all children of all objects to change states. This works beautifully now but, as is to be expected, takes a while until it is completed. Since switching is now taking over a second, I would like to show a message that is made visible before anything switches, stays on for a second and then disappears. Although I have placed it first in the action inspector, it still fires after switching has completed. Can I do anything to get this to appear before any other actions are executed?

:thinking: it should work. Maybe you have to start the “theme switching” after a short delay to give the browser a chance to show the message. Here a message after clicking the “LOGIN”-Button: (1.1 MB)