@freddix
I explained myself pretty badly ^__^.
I'm an everyday 3DS Max user by the way so here is what I reckon in more detail: the default light in 3DS max (not an omnilight) is like a very distant light always aimed at the objects in the scene no matter how you rotate them. It is as if positioned in the viewer eyes, no matter how you rotate, animate or position your objects they will always be illuminated directly (good for modeling).
As soon as you place your own lights, the default one gets deactivated.
Some of the lights at your disposal are "target" lights and they do have a direction parameter.
Others like "omni" have no direction whatsoever (they irradiate in all directions and you cannot change this behavior)
OMNI_Light shown below:
I wonder if the default global light you are talking about can be effectively "directed" or maybe the best course of action would be to just deactivate it and add true directional lights(?)