There are three options for redirecting a domain, Redirect to another URL, Redirect to a step in a funnel or Redirect to a page in a website.
To create a URL redirect go to Settings -> URL Redirects.
Inside the URL redirect pop up, you need to select a domain, add the old path, select the redirect type and enter the target URL with the new path.
For a funnel redirect, you would need to select the funnel and also select the funnel step that the URL should be redirected to.
Same for Websites, select the website and then select the page.
Note: Only those websites or funnels that are linked to a domain can be used in the URL redirect.