Can I export a saved ARWorldMap to Unity as an Asset?

If I save a world map that I have generated like in the example scene UnityARWorldMap to my device, can I export that saved world map back to Unity as an asset to add content to it within Unity?

 

I'm thinking I create a gameobject at runtime that represents the world map, serialize it, save it as a json to the device, then deserialize in unity. I was wondering if there is an easier way.