Goal: Create a redirect to a page with a long name.
Current process: Carefully copy most of the URL and paste it in the box. Be irritated about all of the underscores that will be there. (Then be amazed and pleased to discover that some totally awesome person has written code to prett-ify it upon save.)
Desired process: ⌘A to select the whole URL, tab to the box, paste it in. Be happy that it can convert the URL to the internal link just like the link tool converts URLs.