What conditions do I need to apply translucency in 'asm-metal-rough'?

I have been using 'pbr-metal-rough-with-alpha-blending' to apply opacity.

However, it was insufficient to express materials such as jewels.

Finally the asm shader has been updated .

I thought the public image had the solution I was looking for.

The surface of the coat and sheen completely satisfied me.

But I added a translucent channel but no transparency applied.

What conditions are required for translucency to be applied?

In my substance painter, only the 'asm-asm-metal-rough' shader exists and no other asm shaders for alpha blending are visible.