I'd like to display data of a WMS (WebMapService) that contains different layers. The URL of the capabilities document is:
The problem is about the layer_id. To retrieve the WMS data, the Parameter "layer_id" is needed. But I want to see several layers (about 170 layers) of the WMS, so I don't want to send several requests with varying URLs.
Is there any possibility to obtain all layers at once?
I already tried setting the Parameter to "layer_id=all" or "layer_id=*".