This article will walk you through the steps on how to edit the left hand side navigation link:
First, click "EDIT LINKS" underneath the bottom of the left hand side navigation, as seen below:
To delete a link, click the" X" to the right of the link. To reorder links, simply drag and drop them. To create a new link, click the “(+) link” at the bottom.
Clicking the "(+) link" opens the "Add a link" dialog. Fill it out with the text you want to display. You can click “Try link” to ensure your hyperlink was entered correctly. After you link is created, drag and drop it where you want it in the list.