That video is a little misleading. It shows installing ACF4 from the WP plugin directory but what it is actually showing is the ACF5 Pro version. Unless you’re familiar with both you won’t spot the difference. The first one is the icon for ACF. In 4 it is a gear and in 5 it’s “welcome-widgets-menus”. There are a few other subtle differences between the two… the drag and drop to reorder icon… the fact that the Style has a different default value… hide on screen is laid out differently.
Anyway, there isn’t a URL field in ACF4, the video tell you to use a plugin and then shows you field type drop down with several field types that do not exist in the free version.
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