How to apply one label on multiple materials in Keyshot ?

Hello Everybody,

I'm trying to apply one label on different materials in Keyshot, unfortunately my label is covered by the other materials. I have separated the surface with Solidworks. My label is put on the black material.

There is a picture of my trouble.

My goal is to apply this label on the three materials.

Someone has a solution ?

Thanks in advance for your help !