Click on the Add Layers (+) button on the left panel
In the list of the available layers, select the three Boulder layers: buildings, streets and polygonal landmarks, and click Add Layers
You can open the single row to view more informations about the layer.Select more than one row at time holding Shift or Ctrl while clicking on rowsNotice that when layers are added to the map, the AddLayers panel does not close automatically, so you can choose other layers to add
When all the desired layer are added, click Close to close the tool
Click on the Save Map Context button to save the map