Using Custom CSS on page without a link to it

Hi there,

I have a problem with the wonderful Custom CSS plugin:
I can’t use it on certain pages of my website.

Wehn I create a page and publish it, but dont have a link in the navi (or elsewhere) yet so the public cannot find it yet (because the page is not finished right now) how do I get there with Custom CSS Visual Editor?
From https://siteorigin.com/css/faq/ I know that I can click the magnifier glass to deactivate the code inspector and navigate to another page via the links, but as the page has no link in the navi or elsewhere yet, how can I get to that page?

I guess there is a very simple solution to that but I just don’t get it … ;-)

Thanks a lot,
Andi