Add a link to a post or reply Add or modify a link to a live feed post. Click into the Comment box. The Add a link button appears. Click the Add a link button. The URL and Link text fields appear. Figure 1. Add a URL Enter the URL and the text you want to appear as the link. To add another link, click the link icon under the URL field. When you have finished entering your message, click Post or Reply. Figure 2. URL Saved To remove a link, click the trash can icon adjacent to the link. To make changes to an existing link, click the edit () icon.