SDM500GPS, SDM700, VMU900
Setting the Track Start/Finish line using the Plex Device Manager
Select from the Track Database:
To find a track you can scroll the list, search or even group/filter by dragging a column to the top of the table.
To select and exit Double Click on the desired track row.
Select from Maps:
Click the 'View in Browser' button.
Locate you start/finish positions in Bing Maps.
Right click on the desired position and copy coordinates.
Close Browser window.
Click in the target coordinates numeric box.
Then click the Paste Coordinates button.