Vray 6 Clouds - Night Sky

Hello,
I was wondering if that is possible to color filter the clouds introduced in Vray 6 to simulate night sky. or maybe there is another way to create night sky in procedural way. I tried to filter vray sun and sky but that doesn’t affect the clouds at all.
Thank You.

The clouds are part of the VRaySky (the settings, are currently, in the VRaySun; this will change). Try color-correcting the VRaySky node - a tint should be helpful.

Thank You so much Aleksandar for Your great help!!! I loaded VraySky into composite material and added vray color in multiply mode. It works like a charm! Superb!!!