[Feature Request] Duplicate animation

[rongjie-alter]

Validations

• I have checked for similar feature requests and could not find any.
• I have made sure this is not an already-existing feature.

Description

After I created one animation and I want to do more experimentation to it, I want to duplicate the original animation and experiment there

Suggested solution

I know there a UI rewrite ongoing, but can we add a "Duplicate" button to this menu

(Though after that I would still need to figure out how to copy paste a segment of animation to another...)

Alternative solution

No response

Additional Context

No response