Can this dialog box be removed, or add "don't show this again?" It's basically a warning, and the setting seems to stay anyway. Sometimes, I like to set the "Receive events even if out of vision" before I actually add events to the newly created actor.
Also, is there a way to perform a search for all actors that still receive events even if out of vision? It would help increase performance of the game if a result list appeared and allowed you to click on each item to go to the actor so you can make the change, or you can select which ones you want to disable and just press a button like, "Disable out-of-vision events for these actors."
UPDATE: I stand corrected on the fact that the setting seems to stay. If you add an Event after you had inadvertently set the "Receive events..." to No, it goes back to Yes.