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In both the top and the bottom of the waypoint list we have "Add waypoint" buttons to help us add caches or other waypoints
The waypoints don't need to be a geocache as seen in the drop down
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When you move your mouse pointer over the comment field of a waypoint, you will se an editing icon (if you have editing rights to the trip)
Click the icon to get a "quick edit box"
Here you can add / change comment, correct coordinates, change priority, set a manual stopping time (which overrides the calculated stop time), choose whether the waypoint is excluded from route calculation (This is the easiest way to exclude caches from the route calculation if you are having trouble generating a route.) and select the waypoint visibility.
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