I changed the Maintexture of Material.
However, when Scean changes and return to the original MainTexture.
I’m wrong English.
So by using the translation, and it is possible grammar is funny.
Hopefully understanding. Do you have to be to what is necessary?
you may need to look up the use of prefabs, they will keep any changes to materials (and other properties)
When you instantiate prefabs you will be able to make an endless amount of the same object in any scene.