multiple scenes with same lighting settings

My game will have multiple scenes (1 per level), which are all the same size (1 screen levels) and all need the same lighting settings (Environment lighting, Baked GI).

Is there a way to share or copy settings?
I don’t want to manually have to edit all the scenes (about 50) when I make a change.

I found the following in the Script Reference:

RenderSettings

LightmapEditorSettings

Lightmapping

Together they have a lot of options of the Lighting windows, but not all…
I could use this to partially copy the settings from one scene to another.

If you duplicate scenes when you bake lightmap for the duplicated scene, all previously baked lightmaps of the source scene also gets corrupt

You can duplicate scenes to get the same lighting setup, then just tweak each copied scene if need be.