How to set a static page as parent for a custom post type

I have been researching this all day, and while I've found many people struggling with this issue, I have yet to find a solution.

So...

I have a regular, standard WP page called "Business Services." And I created a custom post type called "Services." All of the entries under "Services" are (obviously) the services offered under "Business Services."

What I would like to do is be able to select "Business Services" as the parent page for all the "Services," so the URL would be ".../business-services/name-of-service" instead of ".../services/name-of-service", which is what it currently is.

Is this possible, and if so, how the heck do I do it?

Thanks in advance for your help! :slight_smile: