Removing Old Appointments and E-Mails from Project View

Noticed that when looking at a project, the old meetings and e-mails associated with the project are also displayed.  However, even though the meeting is past or the e-mail has been closed, there does not appear to be a way to remove this from the view. 

I understand the need to keep the appointment or event associated with the project, but is there a way to exclude it from the project explorer view so I am only looking at active or upcoming items.