Is layer masking available in AGOL? I'm building a map for use in a Story Map, and I'd like to mask a few of the layers by another polygon layer in the map. In Pro I'd use layer masking via the masking drop down menu (by clicking on the layer to be masked in the contents pane. It's on the Feature Layer super tab, on the Appearance tab, in the Drawing group). Is there any way to do something similar online, or do I need to create clipped versions of the layers I want to mask?