While working on a charity website, i could not change the plugin’s donations form page url to my preferred word. I wanted to keep the page but redirect to another. A quick search and i stumbled on this guide from wpbeginner which totally fixed this headache for me with 3 clicks.
Step #1: Download/install and activate a redirection plugin. We recommend ‘page links to‘ by Mark Jaquith.
Step #2: Go to all posts or all pages, click ‘edit’ on the particular post or page you want to redirect.
Step #3: At the bottom of the post or page, you will see the ‘page links to’ widget. Input the URL you want and save page. That’s all.