When i change the “Blend Mode” to “Translucent” The main material input options: Metallic Specular and Rougness become to gray.
I konw It does not make sense But i don`t know how to solve. 
Thank you！！！！！
When i change the “Blend Mode” to “Translucent” The main material input options: Metallic Specular and Rougness become to gray.
I konw It does not make sense But i don`t know how to solve. Thank you！！！！！