I do think this function would be feasible as a single scan option (via a button on the web UI and mydlink), where the camera iterates once through all predefined positions in a single sweep with a 1 second (or so) pause between locations, without placing undo strain on the pan/tilt motor. This feature would be useful for passive checks either through mydlink or the DCS-5010L web UI.
For those who are interested, this functionality is already available with the DCS-5010L using the latest version of D-ViewCam. Using D-ViewCam, the preset positions saved in the DCS-5010L FW can be placed as an event in any order. Additionally, the same preset position can be listed multiple times during a single event/scan.