This example shows how to change the default set of formatting items in the dropdown.
By default the set is:
['p', 'blockquote', 'pre', 'h1', 'h2', 'h3', 'h4', 'h5']
Let's change it. Click to the formatting dropdown to see the result.
<!-- element -->
<textarea id="content"></textarea>
<!-- call -->
<script>
$R('#content', { formatting: ['p', 'blockquote', 'h2'] });
</script>