Change buttons in the toolbar

This example shows how to change the default set of buttons in the toolbar.

// default set of buttons
'html', 'format', 'bold', 'italic', 'deleted', 'lists', 'image', 'file', 'link'

// additional set
'line', 'redo', 'undo', 'underline', 'ol', 'ul', 'indent', 'outdent', 'sup', 'sub'

So you can customize the set with the buttons option like in this demo: