To modify the opacity of any displayed map or layer:

• Click on the “Maps & layers” menu and select “Displayed maps” ;
• Click on the “Opacity” button of the map or layer you want to modify the opacity;
• Move the “Opacity slider” to adjust the opacity. The display is updated in real time to reflect your settings.

The opacity setting will be forgotten as soon as you un-display the map. In order to save it you can create a favorite map.

You can use the opacity setting explained just above to quickly switch between two displayed maps in one single click:

• Display your two maps at the same time, by adding the second map on top as a layer;
• Click on the “Opacity” button of the top map;
• Setting a opacity of “100%” will only display the top map;
• Setting a opacity of “0%” will only display the bottom map.