weDocs as subpage with one more level in the permalink URL

Hi!

Now I have weDocs installed at
https://helloclerk.io/help-center/ (I rewrite /docs/ -> /help-center/ in functions.php)

So article have URLs like https://helloclerk.io/help-center/getting-started/installation/

Now I want to move weDocs root to a subpage of https://helloclerk.io/help-center/ which is https://helloclerk.io/help-center/fundamentals/ (rewrite /docs/ -> /fundamentals/ in functions.php)

And https://helloclerk.io/help-center/fundamentals/ works fine (shows docs index)

But looks like permalinks for specific articles don’t include /help-center/, they just use https://helloclerk.io/fundamentals/getting-started/installation/ URL.

How can I add the missing parent page URL into the permalink? That my article URLs will look like
https://helloclerk.io/help-center/fundamentals/getting-started/installation/

P.S. these new URLs are not live yet.