Situation:
I have one map with three duplicate layers.
These are identical, other than name and symbology visibility at different zoom levels
When I zoom into the map the polygon features gradually fade as the different layers appear and disappear so the basemap can bee seen clearly beneath.
When I want to explore one class of polygon, I am able to filter 'in' one field class with a widget - which enables me to select the symbology for one of these layers - but as I zoom in and out, the unfiltered polygons re-appear.
Is there a way to create a filter so that it applies to multiple layers?