How does not share info/company imprint work

Can someone explain to me where I can find these 2 options?

I link a page to it and what should be done, where is it displayed. I see the other options and I understand what happens, but I haven't discovered it yet with this one.

This is a legal page if you sell to America. It's a reference that can be picked up by addons when set, like producing a text link or print it in an email, or similar.

To fully comply make sure you dock the page under "Information" so it is displayed in the site footer.

Company Imprint is needed by sellers operating in Germany (where it's most known as Impressum). And maybe some more countries?
Same thing, dock it under Information so it's visible in the Site Footer.