Start event when player spawns at a certain PlayerStartArea?

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Well I tried out what you said Grey Fox, but it didnt work unfortunately :/

In what way? There are only two ways to achieve what you want, and that is either through checkpoints (i.e. after the player dies) or when the player enters at the desired spot (e.g. having previously interacted with a level door); there is no other instance that i know of that the player "spawns."