Need help with nested pages

Hello,

I’ve been struggling to learn how the MPG plugin works for weeks now. (got the paid, pro version)

Because I don’t know any coding or developing, I’ve been using ChatGPT to help me with this project.

The plan is to create a directory to an already existing niche site.

The website is: https://nailinspire.com/

I managed to finish the business pages that I want to list, here is an example of it:

https://nailinspire.com/us/indiana/zionsville/la-brise-nail-lounge/

The next step would be to create the “nested pages” or archive pages.

I managed to do the first one for the states:

https://nailinspire.com/us/

The next two I can’t figure out and make it work:

ex: https://nailinspire.com/us/indiana

ex: https://nailinspire.com/us/indiana/zionsville/

I want basically the same function as by the states.

If someone clicks on a state it should open that state in a separate window and display all the cities within that state, according to the .CSV file.

The same goes for the cities to businesses as well.

Can somebody help me with it?

Thanks

The page I need help with: [log in to see the link]