var prefabNames = new string[]
{
    "Pedestrian Connection",
    "Pedestrian Connection Surface",
    "Pedestrian Connection Inside",
    "Pedestrian Connection Underground"
};
foreach (var prefabName in prefabNames)
{
    var prefab = PrefabCollection<NetInfo>.FindLoaded(prefabName);
    prefab.m_class.m_layer = ItemClass.Layer.Default;
    //prefab.m_createPavement = true;
    prefab.m_netLayers = 512;
    prefab.m_hasTerrainHeightProps = true;
    prefab.m_maxPropDistance = 1000f;
    var laneProps = prefab.m_lanes[0].m_laneProps = ScriptableObject.CreateInstance<NetLaneProps>();
    laneProps.m_props = new NetLaneProps.Prop[1];
    laneProps.m_props[0] = new NetLaneProps.Prop()
    {
        m_prop = PrefabCollection<PropInfo>.FindLoaded("Barrel 01"),
        m_finalProp = PrefabCollection<PropInfo>.FindLoaded("Barrel 01"),
        m_flagsRequired = NetLane.Flags.Created,
        m_probability = 100,
        m_repeatDistance = 2,
        //m_segmentOffset = -1,
        m_position = new Vector3(0, 0f, 0)
    };
}