Opens the layer window control, allowing the user to configure layers. Note, in this mode the current layer cannot be changed! For this select the layer from the map layer control.
Similar to the NEAREST button on the profile control, however, this specifically selects the nearest network file (Landrain), if loaded. Even if an IP profile is closer.
Similar to the NEAREST button on the profile control, however, this specifically selects the nearest IP profile even if a network file (Landrain) is loaded and closer.