well depends when you want it to move like that? when u move it by keyboard or you want him to do it all the time? you could try with sine behavior, and change the time of action and the way it moves if you want it be a random float platform, and not your main actor. i need to know what you want to use it as , so i can know how to make it spin , cause a fixed position object as a element in a game, its gonna have different programming then a actor that u want to move and jump around.
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