Disable external calendar invites from showing up automatically while allowing internal ones

This is in regards to the "Display new (unprocessed) notices" feature in the Lotus client.  It allows internal as well as external unprocessed invites to show up on the calendar.  Allowing internal calendar invites to show up grey before they have been accepted is useful.  It allows you to see them, it's a placeholder, while at the same time doesn't require you to respond.  The problem is that external invites should not be given this same privilege.  It would be a problem to allow this for companies that normally get a lot of external invites, or if a company gets spammed with invites.  This feature seems like it would be much more useful if intern and extern invites could be separated.

Thanks,

Matt