Is there any way to do loop boucing effect in Animation Player?

Question

I want to do a bouncing effect in the sprite. Something like:
States: 1, 2, 3, 2, 1, 2, 3, 2, 1, ...

To do this, I keyd frames 1, 2 and 3 into an Animation Player node. But the loop option only makes the straight loop. Something like:
States: 1, 2, 3, 1, 2, 3, 1, 2, 3, ...

I know that I can key sprites 1, 2, 3 and 2 (again) to achieve the same effect, but it's annoying with many states.

Is there any configuration on Animation Player menu that I didn't found?

Comments

You can't do this natively in an AnimationPlayer to my knowledge and adding an extra '2' frame is the way I would do it.

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Thank you for replying, Lola. It's a shame...would be nice to have this feature. Imagine do it with an animation of 30 sprites...