How can iOS developers update App Store metadata without hassle?

When creating a new App Store version to update ASO keywords and metadata, I notice that elements like the app icon and other details are missing and I am looking for a way to copy the existing metadata from the previous version.

Also, is it possible to submit a new App Store version solely for ASO improvements without uploading a new build and still have the changes applied successfully.

How can iOS developers update App Store metadata without hassle?
 
 
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