Quote - Hi Dick! Yes, cross posted!
Glac, you can set cloud anisotropy much higher, up to the 90s'. If sun cannot be moved, you can try adding a red point light inside the cloud layer, and make it influence clouds (little cloud icon under the light's properties in the object properties panel), netx, in the light editor, make the light influence only the clouds, in the influence tab. You'll need a very high intensity ( like 1000) to see the effect. Don't make the light volumetric, or it will also colour the sky red.

Hi Fella
i tried looking for this cloud icon, i couldt find it, is it in Clouds , or Sky fog and haze ?

glac