Atmosphere Fog vs Exponential Height Fog

Lighting a large interior environment with VOlumetric Fog effects. Not happy with the results of using Exponential height Fog (With Volumetric Fog Enabled) alone. The overall GI of the fog in the environment doesn’t look accurate.

Is it possible to combine BOTH Atmosphere Fog AND Exponential height Fog in the same scene?
And if so with AtmosphereFog must you have a Directional Light(Sun) for it to work properly?

Any feedback appreciated!