Follow these steps once your are in the "Content Editor"

1. highlight the text you want to turn into a link.
   
   
   
2. Right click the highlighted text for the context menu and select Insert/edit link from the context menu.
   
   
   
3. Enter the address to the website in the LinkURL field. ('mailto:user@domain.com' for email addresses, '/directory/file' for files/page on this website)
   
   
   
   
4. click Insert button.