How to move only a single page?

Hi,

I have developed a WordPress site for someone on my dev server, however, they only want the homepage moved at first and visible and can not have the other pages moved or available to the public.

I can not move the entire site as they still want changes done on my dev server without it being available to the public eye, yet they still need to be able to see it.

How can I move just one page, with it's design and all? I use Divi to design it.