Looks like a nice editor.
Jonathan Coleman replied to your XenForo ticket "WYSIWYG editor for XenForo":
We have no current plans to extend our editors as we are happy with the current one we use and see little benefit in providing others.
As such we would be unable to provide you a development license.
To respond and view the history of this ticket, use this page:
<ticket link removed>
The XenForo Team