This theme has 12 extra content areas, use the demo project and the included Extra Content page to locate these areas.
To insert text and other content to an extra content area use the snippet below:
<div id="myExtraContent5">CONTENT HERE</div>
You can also use classes to center the content, example:
<div id="myExtraContent5" class="uk-text-center">CONTENT HERE</div>
If you wish to have a content that will be displayed on all pages than use the Code section of RapidWeaver, at Settings > Code > Body