Creating repository in Sandbox

 What would be the best way to create a repository with all cards (over 500 cards) referencing one dataset and is there a quick way to remap all cards once promoted to the sandbox instance?

I found this KB: https://domo-support.domo.com/s/article/4403367344023?language=en_US

However, would like to confirm if the best way to create a repo of a lot of cards is to promote them as a dashboard or page? But no fast way to remap them to a dataset?

Thanks in advance!

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