Change The Slug/Permalink For A Specific Page
With Nucleus Web, a page URL is created automatically for each page you create using the Page Name that you entered when you originally created the page. If you later want to change/update this URL, you can do that by going to Web and under the Pages tab, choose the Edit button beside the page you want to update.
Then select the Settings section, and choose the Page URL option in the sidebar menu. Here you can click into the field of the existing URL, and change it to whatever you would like it to be.