'Layers' button opens window with map layers' configuration menu.
In the Map layers window it is possible to choose enabled overlays on the map.
It is possible to check, add and prioritise elevation sources that will be used on main map.
To upload/remove 3D objects and Placemarks select the appropriate tab in the Map layers window. To display the No-fly zones (refer par. 'No Fly Zones') on the map, toggle the checkboxes Aerodrome zones and Custom zones.