Go to Menus -> Main Menu

That takes you to
Menu Item Manager: mainmenu

If you want to add a menu item, click New.

In Menu Item: New <br/>
'''If you want to link to an article''' (i.e. a web page in the hub) 
<ul>
<li>
click Articles->Article->Article Layout</li>

<li>Then on the upper right you will be able to select an article, click the Select button.</li>

If you know the name of the article, type it into the Filter.
Otherwise click Reset to see all the articles.

<li>Click the article name you want.</li>

<li>Then, on the left type in a Title. </li>The title will be the menu label for the article so you don't want it to be too long.

<li>Click Save.</li> This will take you back to 
Menu Item Manager: mainmenu

Make sure that there is a green check mark under '''published''' for your article.