I need to duplicate a complex animation in the same skeleton, this works fine but I'd like to change the attachments of the copied animation as well, no not really like a skin because both versions need to be on screen at the same time, how could I copy the mesh from one slot and paste it on a new attachment, even if it's in the same slot?

Please help!

Erikari wrote

Hey ceemarcus, if you need to have more meshes with the same animation, and you've already animated them, you could click "duplicate" in setup mode on your mesh, and a prompt will ask if you wish to duplicate the frames as well.

Otherwise, if this does not solve it for you, how do you intend to change attachments? can you be more descriptive of the animation you want to do?

Thanks for replying!
Yes I duplicated the bones after animating the first run (it's a fireworks animations btw)
I re-named the mesh to the new asset and it worked!