You can drag records to move them in the Graphical Calendar. This makes it easy to reschedule a meeting without opening the Calendar file.
If you want to move an event to a different time, simply move your mouse to the left side of the record until the pointer becomes a . Click to grab the record, and then drag it to the desired time. This removes the record from the original time slot and adds it to the new time slot.
Tip: Want to copy a calendar record? Hold down Ctrl when dragging the record to make a copy instead of moving it!