Hey, how can I update the existing community file that I submitted last year with a new one that has been designed separately?

I forgot to update the uploaded/community file, and created a separate file with different structures. Now, I would like to update the uploaded/community file with a new design file that was designed separately.

I tried to copy-paste pages from the new design to the old one, but it redirects to the source, and the component system doesn’t work as expected.

Is there any way I can reference a new design file for an old submission?

Thanks