We are using collector classic to collect spatial data when surveying subsistence use areas in remote Alaska. Simply, we ask people where they hunted, fished and gathered food. We end up with polygons on top of polygons on top of polygons, and we'd like to be able to filter the data to show only one household user at a time. This has to be done offline, since there is no internet connection or cell towers in the places where we survey. We have to use Collector Classic because some of our iPads can't be updated anymore so we can't use the newest version of Collector.