I created an ArcGIS Online web app with a swipe widget. The swipe widget is configured with only one layer. Despite the fact that there is only one possible choice, the box for selecting a layer is displayed (labeled "Select the layer you want to swipe"). This is confusing and it hides a significant part of the map on a small screen. Is there any easy way to change that (i.e., not display the box prompting the user to select a layer when the swipe widget is enabled)?