Is there a way to Update SpriteSheets without having to remake all the animations? (787585)

I want to avoid wasting a lot of time on renaming every frame in the sprite sheet (after splitting) and then re-making all the animations it was connected to. And re-adding the animations to the correct blendTrees/CharecterControllers.

As such anyone know anyway to Update an Existing SpriteSheet in your project, without needing to do all that?

Thanks

There’s a package called Animation Importer that i use: