CoronaRaySwitch and Volumetrics

why CoronaRaySwitch can’t read volumetric absorption and scattering of CoronaMtl?

How to solve this?

(i just changed the reflection material)

i think have todo add volumetric slider to this material …

Sorry, but your description is very hard to understand. Can you please explain it better, post some screenshots, renders… That would be greatly appreciated!