Updating URLs on a website

Hi

I’m reviewing the URLs of my website pages. When the site was built, the page URLs didn’t all follow the parent/child structure. I would like to correct this, to support our SEO. However, I’m mindful that if I simply change the URLs and connect them to their parents then anyone who uses the original URLs won’t be able to see the pages. So I would like to retain the original URLs somehow – would that be as aliases? I can’t find a place in WordPress to create friendly URLs/aliases/redirects.

I’m nervous about breaking any pages and would be grateful for any advice on tackling these URLs in a straightforward way.

Many thanks.

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