Multiple lightmaps / 1 scene

Hi,
at the moment I have a lot of questions ^ ^.

I wanted to get your opinion on a method that I intended to put in place and whether it was viable.
I counted used lightmaps from different scene in the same scene.

For this, I bake my lightmaps counted so that a stage has held in one or two textures lightmaps. (I have a dozen scenes)
At the time of each bake I make sure that the atlas is locked for not editing on the previous one.

The content of the scene I bake is contained in a prefab for each one.

When launching a part of my game, the player has a choice between 10 levels (and therefore 10 different scenes) when loading my prefab in the scene that only serves me to load all my levels I intended to call my lightmap(s) according to the prefab load.

Is that possible or lightmaps are associated with a single stage?

If yes, I thought bake and stored them in the Resources folder to be able to access it when I want and each wholesale store them in a folder corresponding to the name of each prefab to find them easily and dynamically load their info tilling / offset in LightmapSettings. Is that possible too?

Me what course would suit me is that the table lightmap is shared between all the scenes ^^ (but I do not think that is the case)

Otherwise latter, I bake my lightmaps in the scene where I call and not each in a different stage. Hence my scene called (level) contain all the information of my lightmaps and can be retrieved easily at each stage of loading prefab by making a link between the index of the lightmap in the atlas and current index prefab.

Here, if I was not clear, let me know.
Otherwise all your comments and opinions are welcome.

The solution is quite simple,
Bake lightmap in an empty scene.
Store them in Resources Folder.
Then call them when you init your scene with the lightmapData parameter :wink:

If you need more information just say it. I gonna put a higher explanation here :wink:

P.S : More details are present in my question