Is it possible to use the standard character animations but with physics breast and glutes?

[SupportiveEntity]

Hey there @Naiuma! Yes any extra bones should be fine, as your retarget solvers are only looking for the bones relevant to the original skeleton.

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Everything you need to know is here. Base concept is as long as your main skeleton does not change then additional bones can be added as long as the main hierarchy does not change with additional bones added as children off the hierarchy.When imported the bones are added to the target skeleton as added or virtual bones and any animations applied to that addition will be recognized.