Board Thread:Support Requests - Getting Technical/@comment-32060410-20180731224630/@comment-9605025-20180801040652

Giving us the link won't actually help in this case. Renaming images is something only users with content moderator status (or "higher") can do. When you view a typical page, there should be a button to the top right of the content. Since you are an admin, it should say "Edit". That same button should be there when you view the image page that you linked to. Do you see the triangle button next to it? Click that do get a dropdown menu with additional actions you can take. "Rename" should be one of them.