This is the first time I've used QGIS, so bear with me. I have an ArcGISMapServer data source and added one of its layers to the canvas. It doesn't let me customize any of the styles, because I assume QGIS is just pulling down tile images. All of the features have geometry data, so I'd like to extract the polygons into a virtual layer so that I can style them myself. But I'm not sure what query to use.
Is this even possible and, if so, how would I do it?