The option to add links (hyperlinks) appears on the ribbon whenever you are working on text or images. We've included some standard links in drag-and-drop editor which we know you'll find useful including the unsubscribe link, which must be included in all campaigns.
When adding links to text, most users will first type text into their campaign, then select that text before clicking the Link button. You also have the option to click your mouse where you want the text link to appear and do the whole thing within the Add a Link option.

A standard link to a webpage can have the following aspects set in the Add a link screen:
The preview screen shows how this link will appear in the campaign.