for( LayerInstance layerInstance : layerInstances )
{
// Navigate to the LayerResolution
LayerContext layerContext = layerInstance.getLayerContext();
LayerBinding layerBinding = layerContext.getLayerBinding();
LayerResolution layerResolution = layerBinding.getLayerResolution();
// Find which layers below.
List<LayerResolution> below = layerResolution.getUses();
}