how to backport webtemplates

Dear gurus,

I've a few web templates in production, that needs to be changed.

But the webtemplates in production, test, and development are not in sync.

So to make the changes i need to backport the webtemplates from production to test and development environment.

So, my question is how to backport these web templates. how to capture the requests in production and colect them in test and development environment.

and how to check the timestamp in web template.