How to simulate the BeginPlay Event inside a sequence (not in game)

Hello, I’m going nuts ! I’ve been searching all over the web and can’t find the answer.
I’m doing a cinematic, not a game, and I have in my scene a wonderful BP from the Cyberpunk City Pack where a train moves along a spline. That train is triggered by the Begin Play Event, and I can’t find how to simulate that in the sequencer, so that my train moves when I render my sequence. I’ve tried to add a custom event in the BP of the train, and trigger that custom event in the sequencer, but it doesn’t work.
Is there a way to simulate a “BeginPlay Event” inside the sequencer so that the action triggered by this begin play take place in the sequence, when you render it ?

If someone have the solution, I’ll build a statue to him !! :=)