In the Main Map View, tap on the Map Layers button to manage the layers on the map.

Note that layers are added to the map from the Layers Library view, not from the Map Layers view.  See the Layers Library page for details.  After a layer has been added to the map, the new layers will appear above other layers on the map, and will be at the top of the list in the Map Layers view.

The list of layers is divided into two sections, but any layer can be moved from one of the sections to the other section (see ‘Re-Order Layers’, below):

Map Layers

This is the default section for new layers which are added to the map.  These layers always appear above the Base Map layer (if there is on).  Any combination of zero or more of these layers may be visible at a time.

Base Maps

Only one (or zero) of these layers may be visible at a time.  A visible Base Map will always appear below the other Map Layers on the map.

Show/Hide Layer

To toggle layer visibility:

  • Tap the layer name

A tick (check) mark indicates that the layer is visible on the map.  An empty box indicates that the layer is hidden on the map.

NB:  Tapping a Base Map layer will also cause any other Base Map layers to be hidden, since only one Base Map can be visible at a time.  This makes it easy to switch Base Maps – ie, it is not necessary to manually hide the previous Base Map when selecting to show a different Base Map.

Re-Order Layers

  • Tap ‘Edit’ (bottom toolbar)
  • Drag and drop the layers in the desired order using the drag handles (3 horizontal lines) to the right of each layer name
  • Tap ‘Done’

You can drag layers between the ‘Map Layers’ and ‘Base Map’ sections to start/stop using a layer as a Base Map (instead of as a normal Map Layer).  See a description of the differences between these two layer types above.

Dragging a visible layer into the Base Maps section will cause all other Base Maps to become hidden, as only one Base Map layer can be visible at a time.

View Layer Metadata

Layer metadata includes the URL (online service) or file name (offline data source), spatial reference system, etc.

  • Tap ‘•••’ next to the layer
  • Tap ‘View Metadata’


  • Tap ‘Edit’ (bottom toolbar)
  • Tap ‘i’ next to the layer while in edit mode

Zoom Map to Layer Extent

  • Tap ‘•••’ next to the layer
  • Tap ‘Zoom Map to Layer Extent’
    • This option is only available for layers that have a defined extent (eg, not for global layers)

Change Vector Layer Style

When an offline vector layer is added to the map, a random style (AKA “symbology”) is assigned to it.  (With the exception of the automatically created Track and Waypoint layers – when they are automatically added to the map, they are assigned the default tracking styles).

The random styles will include a label for the ‘Name’ field if there is one, or otherwise for the ‘Title’ field, if there is one (or otherwise, no label).

The line, symbol, fill and label can be customised.

Styles (AKA “symbology”) can be selected from the styles library (which can also be customised – see Settings) or customised directly, in place.

To select a style, or modify the current style of a layer from the Map Layers view, use the Style Editor:

  • Tap ‘•••’ next to the layer name
  • Tap ‘Edit Style(s)’ in the menu that appears
    • This option will not be available if the layer is not an offline vector layer
    • The list of styles for the layer will be displayed (most layers only have one style, but a layer can have different styles for different scale ranges)
  • Tap the style sample next to the scale for which the style should be edited
    • The Style Editor view will be displayed

For details on how to use the Style Editor, see the Style Editor page.

View or Copy Layer Metadata

A layer’s metadata includes URL (where applicable), spatial reference system (authority code) and a variety of other attributes of the layer.  These values can be useful for diagnosing unexpected behaviours or for re-creating similar layers on the same or other devices.

  • Tap ‘Edit’ (bottom toolbar)
  • Tap the ‘i’ button next to a layer
    • The metadata for that layer will be displayed
  • Optionally, press-and-hold on a metadata attribute to copy the value for that attribute to the pasteboard