Include calendar link under "Linked Items" for action
After creating an action and linking it to a calendar appointment, there's no way to jump from the action to the calendar unless you're in edit mode. The section for "Linked Items" shows other things, but not the calendar link. I've attached a comparison of what is shown in view and edit modes when looking at the action.
The ideal solution would be that if there is a linked calendar appointment, the appointment date/time would be displayed directly in the action. (Due date doesn't help because it's not tied to the appointment date.)