Layers are read-only data layers that you can toggle
on and off to add commonly-used data to your maps. For example, you may create a GPX file containing the outline of your project area. You
could add another layer consisting of contour lines in shapefile format from your GIS department or state agency. You might have road centerline
data in DXF format from your engineering department.
Add a New Layer
Select a GPX, SHP, or DXF file to use as a read-only layer in ExpertGPS.
Add, edit, or delete layers.
[Your Layer Files]
Layers with a checkmark next to them will be displayed on the map. Click the layer name in the menu to toggle it on or off.