title: How do you add a button to the email message window toolbar in Lotus Notes 8.5+?
body: <p>A coworker has been struggling with this problem.</p>
  
  <p>The desired result is an installable plugin for Notes that will add a button emails with attachments that will let users save the attachment to a document management system.</p>
  
  <p>Finding documentation on doing this for Notes has been an uphill battle to say the least.</p>
  
  <p>Writing the actual java to do the work isn't a problem, but figuring out how to extend Notes is.</p>
  
  <p>So, is there a way to add a button/icon to the toolbar, or is it just a matter of adding a new toolbar?  If we add a new toolbar then can we make it only visible (or just grey it out otherwise) when no email is open?</p>