title: CurrentItem Method is not working on my inspector
body: <p>I'm creating a Ribbon with a splitbutton which automaticly fills the subject line on an appointmentitem, but I can't seem to do that without creating a new Item. I don't want another window of the calendar to open, I want to use the current one I already opened. Here is my code so far for the splitbutton:</p>
  
  <pre><code>Outlook.Inspector inspector = Globals.TerminAddIn.Application.ActiveInspector();     
         Outlook.AppointmentItem appointmentItem = inspector.CurrentItem(); 
         appointmentItem.Subject = "Test" ; 
  
  </code></pre>