Lighting controls

I do wildlife as well as some portrait work and have enjoyed the AI background functions.  One area that would help me a lot in combining shots with background would be the setting of the color and angle of the light source.  Descriptions to include source being from in front of the camera or behind the camera as well as angles for that source and then some control over the color of the light ie sunlight, incandescant, flourescent, spot or diffuse light.

I am more of a science, math type and not too artsy and I have found the AI to be extremely helpful in adding to the look and feel of my output