What's a URL Key? Glad you asked! When you have multiple related events, like camps, that you want to group via a similar URL structure, you would use the same URL Key.
If you would like to update it, follow these steps.
1. Select "Main Details" from the Manage Page.
2. Type the preferred name of the URL.
3. You can also get to the "Main Details" page from your Dashboard.
4. Don't forget to save!