Hello,
This is Definitely Possible and more instructions about this has already been provided in the Documentation > Shortcodes > Notifications Section. Consider using the following code:
<div id="custom-notification-message" data-notify-position="top-right" data-notify-type="info" data-notify-msg='<i class="icon-info-sign"></i> Welcome to Canvas Demo!'></div>
and then the following JS Code at the bottom of the Page after the js/functions.js JS File Linking:
<script type="text/javascript">
	jQuery(window).load( function(){
		SEMICOLON.widget.notifications( jQuery('#custom-notification-message') );
	});
</script>
This will definitely work fine. Hope this Helps!
Let us know if we can help you with anything else or if you find any further issues.