Humm… not too sure what you are asking here
But it is also possible for different layers to use different canvas textures other than the main visible underlying canvas.
You won’t be able to see the canvas used on any given individual Layer but brush marks made on it will honour and react to the canvas texture assigned to it.
To do this, right click on a layer and choose ‘Edit Layer Texture’.
If this isn’t what you were meaning, perhaps you could expand a little more on your question.
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