Automatically complete dashboard item after meeting is complete

Dex shows me today's meetings on my Today dashboard. Sometimes I don't have notes to add or any action to take after a meeting has finished.
It'd be great if Dex could automatically mark the event as complete:

• X hours after the end of the scheduled event OR
• immediately after I've added a note or otherwise interacted with the meeting's invitee(s) in Dex
  …whichever comes first.