Switching textures

Is there an example how to switch a texture.?
I have around 10 normalmaps id like to switch on an object.
No blending needed just on/off diffrent textures.

just change your desired texture on material with new one,
you can even cache Texture objects and switch them if you want

example to change metallicTexture on pbr material

pbr.metallicTexture = new BABYLON.Texture("myTexture.jpg", scene);