Getting Blueprint Class to Run Without Game Playing UE5.1

Development Programming & Scripting Blueprint
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I’m building a virtual set that includes a nighttime downtown background, and I want to have Aircraft Warning Lights on top of the taller buildings. I’ve figured out how to make a Blueprint Light that blinks red OK, but I have to run the game simulation to make it work, which I’d rather not do if I can avoid it.

Is there some way to tell a Blueprint to run automatically, like when a level loads?

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You can change values and variables in the construction script without having to play, but something in a blueprint that requires a timer won’t run without play/simulation.

Anything in the actual event graph requires play.

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