This plugin allows you to make a WordPress page or post link to a URL of your choosing, instead of its WordPress page or post URL. It also will redirect people who go to the old (or « normal ») URL to the new one you’ve chosen.
This functionality is useful for setting up navigational links to non-WordPress sections of your site or to off-site resources.
You can also use it to create a hand-crafted menu that links to pages, posts, categories, or anything within your site.
You can contribute (or report bugs) on Github.
Page officielle : https://fr.wordpress.org/plugins/page-links-to/