Hello! It sounds like you're having some trouble with the new tool? The text field is the top one (see screen shot) where it says "announcement text". That's the one where you type the message the user will see (something like "check out this update!")
Then in the URL field you enter the page that needs to be linked from the notification. Let me know what you're having trouble with specifically.
If you need help, feel free to leave me a message; you may also want to visit the forums or join us on Chat. You can also check the staff blog to keep up-to-date with the latest news and events around FANDOM.