Use the following steps to customize the ribbon or QAT in Outlook 2010, Outlook 2013, or Outlook 2016: See Create Toolbar Buttons to Open Templates and Files for the necessary VBA and instructions. You can use a script to launch files or applications and assign the macro to a button. You cannot create hyperlinked buttons to launch forms or other applications from the ribbon or QAT.
The method is similar to the method used with Outlook 2007. Office 2010 adds the ability to easily customize the ribbon (along with the quick access toolbar) and export it as a backup or to share with others. Outlook 2010 is the first version that completely eliminated the standard toolbars. Outlook 2007 | Outlook 98 and Later Versions
