To add WMS layers from named layers:
From the layer tree, click the Add WMS Layers button located above the layer tree to add a WMS layer.
From the dialog, select one or more named layers to add and click
The details page for the first layer you selected appears.
Click Preview to see a map preview. You can then change the
coordinate system and style to see an updated preview. Because the layer preview
image uses a GetMap request, this lets you know the request is working.
Once the layers are added, check the Capabilities page (
) to make sure they are exposed through the WMS service properly
and that they follow your intended layout.