Replace lane props on networks in the asset editor.

ReplaceLaneProps.cs

Action<string, string> ReplaceProp = (search, replace) => 
{ 
	var replacementProp = PrefabCollection<PropInfo>.FindLoaded(replace);
	for (uint i = 0; i < PrefabCollection<NetInfo>.LoadedCount(); i++)
	{
		var prefab = PrefabCollection<NetInfo>.GetLoaded(i);
		if (prefab == null) continue;
		if(prefab.m_lanes != null) foreach (var Lane in prefab.m_lanes)
		{
			if(Lane.m_laneProps != null) 
			{
				if(Lane.m_laneProps.m_props != null) foreach (var LaneProp in Lane.m_laneProps.m_props)
				{
					if(LaneProp.m_prop != null) 
					{
					if(LaneProp.m_prop.name == search)
						{
						LaneProp.m_prop = replacementProp;
						LaneProp.m_finalProp = replacementProp;
						Debug.Log("Replaced");
						}
					}
				}
			}
		}
	}
};

// Usage: ReplaceProp("replace this", "with that");
ReplaceProp("darktun.darktun_Data", "1530239308.R69Railway Tunnel Darkener_Data");