You can create new widgets to add functionality to your site. A popular widget many people create and edit is the the Custom text/html widget.

To add a new widget:

1. Go to Admin Bar > Appearance > Layout.
2. Click on the Add new Widget tab (on top right of widget banner).
3. Choose the new widget you want to add to your site.
   
4. Give the widget a name (for the site layout). You can also give it a name that will appear to the public on the page.
5. Enter the appropriate information for the widget.
6. Click the Save button.
7. Drag and drop that widget from the other group of widgets into your site layout.
8. Click Save on the Layout page.