To add data to a project, select a data source, then drag and drop it onto the map.
You can add the same data source multiple times: each addition creates a new spatial layer or data table in the project.
Spatial data appears in the Layers section of the project.
Data tables appear in the Tabular Data section.
Once data is added, you can organize and configure the layers as needed.
Adding data from WMS/WMTS data sources has certain particularities. When you add a WMS/WMTS data source as a layer to a project, the layer is created based on the information provided by the GetCapabilities request:
Includes the first available layer that supports EPSG:3857.
Includes the first available style for the layer.
Uses PNG image format. If PNG is not available, JPG/JPEG is used; otherwise, the first available format from the service is used.
If the WMS/WMTS service does not meet one of these requirements (for example, no layer supports EPSG:3857), the layer is not created and an error message notifies the user.

