The Places category of the Source List contains a list of all user created files called Places which hold map views, waypoint, route and track data.

Place files are created using File/New Place from the Menu bar. We recommend you set up a new Place file each time you want to plan a new trip so that any searches can easily be incorporated into the Place file by simply dragging and dropping them from the results you get when using Find a Location facility via search.
Place files can also be put in Place Folders where you can store the various elements of a trip.
For example - say you are planning a four day trip to the coast and you are doing a road trip on the first day, walks on both the second and third day, and then a different road trip back on the fourth day. The route for each day can be set in a Place file and can then be saved as gpx or kml files for uploading to your GPS device.
Place folders give you more flexibility for managing your data and grouping it together.
When you click on a Place file the map window will show the last view you looked at when you previously opened that Place file.