You can add additional tabs to the center section of your school’s homepage by following these steps:
In site manager, open your school’s homepage.
Click “Manage Apps & Layout”.
Add apps to section “C”.Any app you add here will appear on the site as a tab.They will be displayed in the order they appear in “C”.
After adding your apps, click “I’m Done”
To make the tab appear, you need to click on the app(s) you’ve added then click the black “Options” button in the upper right corner and place a checkmark in the box labeled “Show the app name on my page.” And click “Save”.